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apache / ant / 95b3cf06f18f717ce5dda4b77bfc3eed8b534ba8 / . / src / main / org / apache / tools / ant / Project.java
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/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "Ant" and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.tools.ant;
import java.io.File;
import java.io.IOException;
import java.io.EOFException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Properties;
import java.util.Stack;
import java.util.Vector;
import java.util.Set;
import java.util.HashSet;
import org.apache.tools.ant.input.DefaultInputHandler;
import org.apache.tools.ant.input.InputHandler;
import org.apache.tools.ant.types.FilterSet;
import org.apache.tools.ant.types.FilterSetCollection;
import org.apache.tools.ant.types.Description;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.util.FileUtils;
import org.apache.tools.ant.util.JavaEnvUtils;
import org.apache.tools.ant.util.StringUtils;
/**
* Central representation of an Ant project. This class defines an
* Ant project with all of its targets, tasks and various other
* properties. It also provides the mechanism to kick off a build using
* a particular target name.
* <p>
* This class also encapsulates methods which allow files to be referred
* to using abstract path names which are translated to native system
* file paths at runtime.
*
* @author duncan@x180.com
*
* @version $Revision$
*/
public class Project {
/** Message priority of "error". */
public static final int MSG_ERR = 0;
/** Message priority of "warning". */
public static final int MSG_WARN = 1;
/** Message priority of "information". */
public static final int MSG_INFO = 2;
/** Message priority of "verbose". */
public static final int MSG_VERBOSE = 3;
/** Message priority of "debug". */
public static final int MSG_DEBUG = 4;
/**
* Constant for the "visiting" state, used when
* traversing a DFS of target dependencies.
*/
private static final String VISITING = "VISITING";
/**
* Constant for the "visited" state, used when
* traversing a DFS of target dependencies.
*/
private static final String VISITED = "VISITED";
/**
* The class name of the Ant class loader to use for
* JDK 1.2 and above
*/
private static final String ANTCLASSLOADER_JDK12
= "org.apache.tools.ant.loader.AntClassLoader2";
/**
* Version constant for Java 1.0
*
* @deprecated use org.apache.tools.ant.util.JavaEnvUtils instead
*/
public static final String JAVA_1_0 = JavaEnvUtils.JAVA_1_0;
/**
* Version constant for Java 1.1
*
* @deprecated use org.apache.tools.ant.util.JavaEnvUtils instead
*/
public static final String JAVA_1_1 = JavaEnvUtils.JAVA_1_1;
/**
* Version constant for Java 1.2
*
* @deprecated use org.apache.tools.ant.util.JavaEnvUtils instead
*/
public static final String JAVA_1_2 = JavaEnvUtils.JAVA_1_2;
/**
* Version constant for Java 1.3
*
* @deprecated use org.apache.tools.ant.util.JavaEnvUtils instead
*/
public static final String JAVA_1_3 = JavaEnvUtils.JAVA_1_3;
/**
* Version constant for Java 1.4
*
* @deprecated use org.apache.tools.ant.util.JavaEnvUtils instead
*/
public static final String JAVA_1_4 = JavaEnvUtils.JAVA_1_4;
/** Default filter start token. */
public static final String TOKEN_START = FilterSet.DEFAULT_TOKEN_START;
/** Default filter end token. */
public static final String TOKEN_END = FilterSet.DEFAULT_TOKEN_END;
/** Name of this project. */
private String name;
/** Description for this project (if any). */
private String description;
/** Map of references within the project (paths etc) (String to Object). */
private Hashtable references = new AntRefTable(this);
/** Name of the project's default target. */
private String defaultTarget;
/** Map from target names to targets (String to Target). */
private Hashtable targets = new Hashtable();
/** Set of global filters. */
private FilterSet globalFilterSet = new FilterSet();
/**
* Wrapper around globalFilterSet. This collection only ever
* contains one FilterSet, but the wrapper is needed in order to
* make it easier to use the FileUtils interface.
*/
private FilterSetCollection globalFilters
= new FilterSetCollection(globalFilterSet);
/** Project base directory. */
private File baseDir;
/** List of listeners to notify of build events. */
private Vector listeners = new Vector();
/**
* The Ant core classloader - may be <code>null</code> if using
* parent classloader.
*/
private ClassLoader coreLoader = null;
/** Records the latest task to be executed on a thread (Thread to Task). */
private Hashtable threadTasks = new Hashtable();
/** Records the latest task to be executed on a thread Group. */
private Hashtable threadGroupTasks = new Hashtable();
/**
* Called to handle any input requests.
*/
private InputHandler inputHandler = null;
/**
* The default input stream used to read any input
*/
private InputStream defaultInputStream = null;
/**
* Keep going flag
*/
private boolean keepGoingMode = false;
/**
* Sets the input handler
*
* @param handler the InputHandler instance to use for gathering input.
*/
public void setInputHandler(InputHandler handler) {
inputHandler = handler;
}
/**
* Set the default System input stream. Normally this stream is set to
* System.in. This inputStream is used when no task input redirection is
* being performed.
*
* @param defaultInputStream the default input stream to use when input
* is requested.
* @since Ant 1.6
*/
public void setDefaultInputStream(InputStream defaultInputStream) {
this.defaultInputStream = defaultInputStream;
}
/**
* Get this project's input stream
*
* @return the InputStream instance in use by this Project instance to
* read input
*/
public InputStream getDefaultInputStream() {
return defaultInputStream;
}
/**
* Retrieves the current input handler.
*
* @return the InputHandler instance currently in place for the project
* instance.
*/
public InputHandler getInputHandler() {
return inputHandler;
}
/** Instance of a utility class to use for file operations. */
private FileUtils fileUtils;
/**
* Flag which catches Listeners which try to use System.out or System.err
*/
private boolean loggingMessage = false;
/**
* Creates a new Ant project.
*/
public Project() {
fileUtils = FileUtils.newFileUtils();
inputHandler = new DefaultInputHandler();
}
/**
* inits a sub project - used by taskdefs.Ant
* @param subProject the subproject to initialize
*/
public void initSubProject(Project subProject) {
ComponentHelper.getComponentHelper(subProject)
.initSubProject(ComponentHelper.getComponentHelper(this));
subProject.setKeepGoingMode(this.isKeepGoingMode());
}
/**
* Initialises the project.
*
* This involves setting the default task definitions and loading the
* system properties.
*
* @exception BuildException if the default task list cannot be loaded
*/
public void init() throws BuildException {
setJavaVersionProperty();
ComponentHelper.getComponentHelper(this).initDefaultDefinitions();
setSystemProperties();
}
/**
* Factory method to create a class loader for loading classes
*
* @return an appropriate classloader
*/
private AntClassLoader createClassLoader() {
AntClassLoader loader = null;
if (!JavaEnvUtils.isJavaVersion(JavaEnvUtils.JAVA_1_1)) {
try {
// 1.2+ - create advanced helper dynamically
Class loaderClass
= Class.forName(ANTCLASSLOADER_JDK12);
loader = (AntClassLoader) loaderClass.newInstance();
} catch (Exception e) {
log("Unable to create Class Loader: "
+ e.getMessage(), Project.MSG_DEBUG);
}
}
if (loader == null) {
loader = new AntClassLoader();
}
loader.setProject(this);
return loader;
}
/**
* Factory method to create a class loader for loading classes from
* a given path
*
* @param path the path from which classes are to be loaded.
*
* @return an appropriate classloader
*/
public AntClassLoader createClassLoader(Path path) {
AntClassLoader loader = createClassLoader();
loader.setClassPath(path);
return loader;
}
/**
* Sets the core classloader for the project. If a <code>null</code>
* classloader is specified, the parent classloader should be used.
*
* @param coreLoader The classloader to use for the project.
* May be <code>null</code>.
*/
public void setCoreLoader(ClassLoader coreLoader) {
this.coreLoader = coreLoader;
}
/**
* Returns the core classloader to use for this project.
* This may be <code>null</code>, indicating that
* the parent classloader should be used.
*
* @return the core classloader to use for this project.
*
*/
public ClassLoader getCoreLoader() {
return coreLoader;
}
/**
* Adds a build listener to the list. This listener will
* be notified of build events for this project.
*
* @param listener The listener to add to the list.
* Must not be <code>null</code>.
*/
public synchronized void addBuildListener(BuildListener listener) {
// create a new Vector to avoid ConcurrentModificationExc when
// the listeners get added/removed while we are in fire
Vector newListeners = getBuildListeners();
newListeners.addElement(listener);
listeners = newListeners;
}
/**
* Removes a build listener from the list. This listener
* will no longer be notified of build events for this project.
*
* @param listener The listener to remove from the list.
* Should not be <code>null</code>.
*/
public synchronized void removeBuildListener(BuildListener listener) {
// create a new Vector to avoid ConcurrentModificationExc when
// the listeners get added/removed while we are in fire
Vector newListeners = getBuildListeners();
newListeners.removeElement(listener);
listeners = newListeners;
}
/**
* Returns a copy of the list of build listeners for the project.
*
* @return a list of build listeners for the project
*/
public Vector getBuildListeners() {
return (Vector) listeners.clone();
}
/**
* Writes a message to the log with the default log level
* of MSG_INFO
* @param message The text to log. Should not be <code>null</code>.
*/
public void log(String message) {
log(message, MSG_INFO);
}
/**
* Writes a project level message to the log with the given log level.
* @param message The text to log. Should not be <code>null</code>.
* @param msgLevel The priority level to log at.
*/
public void log(String message, int msgLevel) {
fireMessageLogged(this, message, msgLevel);
}
/**
* Writes a task level message to the log with the given log level.
* @param task The task to use in the log. Must not be <code>null</code>.
* @param message The text to log. Should not be <code>null</code>.
* @param msgLevel The priority level to log at.
*/
public void log(Task task, String message, int msgLevel) {
fireMessageLogged(task, message, msgLevel);
}
/**
* Writes a target level message to the log with the given log level.
* @param target The target to use in the log.
* Must not be <code>null</code>.
* @param message The text to log. Should not be <code>null</code>.
* @param msgLevel The priority level to log at.
*/
public void log(Target target, String message, int msgLevel) {
fireMessageLogged(target, message, msgLevel);
}
/**
* Returns the set of global filters.
*
* @return the set of global filters
*/
public FilterSet getGlobalFilterSet() {
return globalFilterSet;
}
/**
* Sets a property. Any existing property of the same name
* is overwritten, unless it is a user property.
* @param name The name of property to set.
* Must not be <code>null</code>.
* @param value The new value of the property.
* Must not be <code>null</code>.
*/
public void setProperty(String name, String value) {
PropertyHelper.getPropertyHelper(this).
setProperty(null, name, value, true);
}
/**
* Sets a property if no value currently exists. If the property
* exists already, a message is logged and the method returns with
* no other effect.
*
* @param name The name of property to set.
* Must not be <code>null</code>.
* @param value The new value of the property.
* Must not be <code>null</code>.
* @since 1.5
*/
public void setNewProperty(String name, String value) {
PropertyHelper.getPropertyHelper(this).setNewProperty(null, name,
value);
}
/**
* Sets a user property, which cannot be overwritten by
* set/unset property calls. Any previous value is overwritten.
* @param name The name of property to set.
* Must not be <code>null</code>.
* @param value The new value of the property.
* Must not be <code>null</code>.
* @see #setProperty(String,String)
*/
public void setUserProperty(String name, String value) {
PropertyHelper.getPropertyHelper(this).setUserProperty(null, name,
value);
}
/**
* Sets a user property, which cannot be overwritten by set/unset
* property calls. Any previous value is overwritten. Also marks
* these properties as properties that have not come from the
* command line.
*
* @param name The name of property to set.
* Must not be <code>null</code>.
* @param value The new value of the property.
* Must not be <code>null</code>.
* @see #setProperty(String,String)
*/
public void setInheritedProperty(String name, String value) {
PropertyHelper ph = PropertyHelper.getPropertyHelper(this);
ph.setInheritedProperty(null, name, value);
}
/**
* Sets a property unless it is already defined as a user property
* (in which case the method returns silently).
*
* @param name The name of the property.
* Must not be <code>null</code>.
* @param value The property value. Must not be <code>null</code>.
*/
private void setPropertyInternal(String name, String value) {
PropertyHelper ph = PropertyHelper.getPropertyHelper(this);
ph.setProperty(null, name, value, false);
}
/**
* Returns the value of a property, if it is set.
*
* @param name The name of the property.
* May be <code>null</code>, in which case
* the return value is also <code>null</code>.
* @return the property value, or <code>null</code> for no match
* or if a <code>null</code> name is provided.
*/
public String getProperty(String name) {
PropertyHelper ph = PropertyHelper.getPropertyHelper(this);
return (String) ph.getProperty(null, name);
}
/**
* Replaces ${} style constructions in the given value with the
* string value of the corresponding data types.
*
* @param value The string to be scanned for property references.
* May be <code>null</code>.
*
* @return the given string with embedded property names replaced
* by values, or <code>null</code> if the given string is
* <code>null</code>.
*
* @exception BuildException if the given value has an unclosed
* property name, e.g. <code>${xxx</code>
*/
public String replaceProperties(String value)
throws BuildException {
PropertyHelper ph = PropertyHelper.getPropertyHelper(this);
return ph.replaceProperties(null, value, null);
}
/**
* Returns the value of a user property, if it is set.
*
* @param name The name of the property.
* May be <code>null</code>, in which case
* the return value is also <code>null</code>.
* @return the property value, or <code>null</code> for no match
* or if a <code>null</code> name is provided.
*/
public String getUserProperty(String name) {
PropertyHelper ph = PropertyHelper.getPropertyHelper(this);
return (String) ph.getUserProperty(null, name);
}
/**
* Returns a copy of the properties table.
* @return a hashtable containing all properties
* (including user properties).
*/
public Hashtable getProperties() {
PropertyHelper ph = PropertyHelper.getPropertyHelper(this);
return ph.getProperties();
}
/**
* Returns a copy of the user property hashtable
* @return a hashtable containing just the user properties
*/
public Hashtable getUserProperties() {
PropertyHelper ph = PropertyHelper.getPropertyHelper(this);
return ph.getUserProperties();
}
/**
* Copies all user properties that have been set on the command
* line or a GUI tool from this instance to the Project instance
* given as the argument.
*
* <p>To copy all "user" properties, you will also have to call
* {@link #copyInheritedProperties copyInheritedProperties}.</p>
*
* @param other the project to copy the properties to. Must not be null.
*
* @since Ant 1.5
*/
public void copyUserProperties(Project other) {
PropertyHelper ph = PropertyHelper.getPropertyHelper(this);
ph.copyUserProperties(other);
}
/**
* Copies all user properties that have not been set on the
* command line or a GUI tool from this instance to the Project
* instance given as the argument.
*
* <p>To copy all "user" properties, you will also have to call
* {@link #copyUserProperties copyUserProperties}.</p>
*
* @param other the project to copy the properties to. Must not be null.
*
* @since Ant 1.5
*/
public void copyInheritedProperties(Project other) {
PropertyHelper ph = PropertyHelper.getPropertyHelper(this);
ph.copyInheritedProperties(other);
}
/**
* Sets the default target of the project.
*
* @param defaultTarget The name of the default target for this project.
* May be <code>null</code>, indicating that there is
* no default target.
*
* @deprecated use setDefault
* @see #setDefault(String)
*/
public void setDefaultTarget(String defaultTarget) {
this.defaultTarget = defaultTarget;
}
/**
* Returns the name of the default target of the project.
* @return name of the default target or
* <code>null</code> if no default has been set.
*/
public String getDefaultTarget() {
return defaultTarget;
}
/**
* Sets the default target of the project.
*
* @param defaultTarget The name of the default target for this project.
* May be <code>null</code>, indicating that there is
* no default target.
*/
public void setDefault(String defaultTarget) {
this.defaultTarget = defaultTarget;
}
/**
* Sets the name of the project, also setting the user
* property <code>ant.project.name</code>.
*
* @param name The name of the project.
* Must not be <code>null</code>.
*/
public void setName(String name) {
setUserProperty("ant.project.name", name);
this.name = name;
}
/**
* Returns the project name, if one has been set.
*
* @return the project name, or <code>null</code> if it hasn't been set.
*/
public String getName() {
return name;
}
/**
* Sets the project description.
*
* @param description The description of the project.
* May be <code>null</code>.
*/
public void setDescription(String description) {
this.description = description;
}
/**
* Returns the project description, if one has been set.
*
* @return the project description, or <code>null</code> if it hasn't
* been set.
*/
public String getDescription() {
if (description == null) {
description = Description.getDescription(this);
}
return description;
}
/**
* Adds a filter to the set of global filters.
*
* @param token The token to filter.
* Must not be <code>null</code>.
* @param value The replacement value.
* Must not be <code>null</code>.
* @deprecated Use getGlobalFilterSet().addFilter(token,value)
*
* @see #getGlobalFilterSet()
* @see FilterSet#addFilter(String,String)
*/
public void addFilter(String token, String value) {
if (token == null) {
return;
}
globalFilterSet.addFilter(new FilterSet.Filter(token, value));
}
/**
* Returns a hashtable of global filters, mapping tokens to values.
*
* @return a hashtable of global filters, mapping tokens to values
* (String to String).
*
* @deprecated Use getGlobalFilterSet().getFilterHash()
*
* @see #getGlobalFilterSet()
* @see FilterSet#getFilterHash()
*/
public Hashtable getFilters() {
// we need to build the hashtable dynamically
return globalFilterSet.getFilterHash();
}
/**
* Sets the base directory for the project, checking that
* the given filename exists and is a directory.
*
* @param baseD The project base directory.
* Must not be <code>null</code>.
*
* @exception BuildException if the directory if invalid
*/
public void setBasedir(String baseD) throws BuildException {
setBaseDir(new File(baseD));
}
/**
* Sets the base directory for the project, checking that
* the given file exists and is a directory.
*
* @param baseDir The project base directory.
* Must not be <code>null</code>.
* @exception BuildException if the specified file doesn't exist or
* isn't a directory
*/
public void setBaseDir(File baseDir) throws BuildException {
baseDir = fileUtils.normalize(baseDir.getAbsolutePath());
if (!baseDir.exists()) {
throw new BuildException("Basedir " + baseDir.getAbsolutePath()
+ " does not exist");
}
if (!baseDir.isDirectory()) {
throw new BuildException("Basedir " + baseDir.getAbsolutePath()
+ " is not a directory");
}
this.baseDir = baseDir;
setPropertyInternal("basedir", this.baseDir.getPath());
String msg = "Project base dir set to: " + this.baseDir;
log(msg, MSG_VERBOSE);
}
/**
* Returns the base directory of the project as a file object.
*
* @return the project base directory, or <code>null</code> if the
* base directory has not been successfully set to a valid value.
*/
public File getBaseDir() {
if (baseDir == null) {
try {
setBasedir(".");
} catch (BuildException ex) {
ex.printStackTrace();
}
}
return baseDir;
}
/**
* Sets "keep-going" mode. In this mode ANT will try to execute
* as many targets as possible. All targets that do not depend
* on failed target(s) will be executed.
* @param keepGoingMode "keep-going" mode
* @since Ant 1.6
*/
public void setKeepGoingMode(boolean keepGoingMode) {
this.keepGoingMode = keepGoingMode;
}
/**
* Returns the keep-going mode.
* @return "keep-going" mode
* @since Ant 1.6
*/
public boolean isKeepGoingMode() {
return this.keepGoingMode;
}
/**
* Returns the version of Java this class is running under.
* @return the version of Java as a String, e.g. "1.1"
* @see org.apache.tools.ant.util.JavaEnvUtils#getJavaVersion
* @deprecated use org.apache.tools.ant.util.JavaEnvUtils instead
*/
public static String getJavaVersion() {
return JavaEnvUtils.getJavaVersion();
}
/**
* Sets the <code>ant.java.version</code> property and tests for
* unsupported JVM versions. If the version is supported,
* verbose log messages are generated to record the Java version
* and operating system name.
*
* @exception BuildException if this Java version is not supported
*
* @see org.apache.tools.ant.util.JavaEnvUtils#getJavaVersion
*/
public void setJavaVersionProperty() throws BuildException {
String javaVersion = JavaEnvUtils.getJavaVersion();
setPropertyInternal("ant.java.version", javaVersion);
// sanity check
if (JavaEnvUtils.isJavaVersion(JavaEnvUtils.JAVA_1_0)) {
throw new BuildException("Ant cannot work on Java 1.0");
}
log("Detected Java version: " + javaVersion + " in: "
+ System.getProperty("java.home"), MSG_VERBOSE);
log("Detected OS: " + System.getProperty("os.name"), MSG_VERBOSE);
}
/**
* Adds all system properties which aren't already defined as
* user properties to the project properties.
*/
public void setSystemProperties() {
Properties systemP = System.getProperties();
Enumeration e = systemP.keys();
while (e.hasMoreElements()) {
Object name = e.nextElement();
String value = systemP.get(name).toString();
this.setPropertyInternal(name.toString(), value);
}
}
/**
* Adds a new task definition to the project.
* Attempting to override an existing definition with an
* equivalent one (i.e. with the same classname) results in
* a verbose log message. Attempting to override an existing definition
* with a different one results in a warning log message and
* invalidates any tasks which have already been created with the
* old definition.
*
* @param taskName The name of the task to add.
* Must not be <code>null</code>.
* @param taskClass The full name of the class implementing the task.
* Must not be <code>null</code>.
*
* @exception BuildException if the class is unsuitable for being an Ant
* task. An error level message is logged before
* this exception is thrown.
*
* @see #checkTaskClass(Class)
*/
public void addTaskDefinition(String taskName, Class taskClass)
throws BuildException {
ComponentHelper.getComponentHelper(this).addTaskDefinition(taskName,
taskClass);
}
/**
* Checks whether or not a class is suitable for serving as Ant task.
* Ant task implementation classes must be public, concrete, and have
* a no-arg constructor.
*
* @param taskClass The class to be checked.
* Must not be <code>null</code>.
*
* @exception BuildException if the class is unsuitable for being an Ant
* task. An error level message is logged before
* this exception is thrown.
*/
public void checkTaskClass(final Class taskClass) throws BuildException {
ComponentHelper.getComponentHelper(this).checkTaskClass(taskClass);
if (!Modifier.isPublic(taskClass.getModifiers())) {
final String message = taskClass + " is not public";
log(message, Project.MSG_ERR);
throw new BuildException(message);
}
if (Modifier.isAbstract(taskClass.getModifiers())) {
final String message = taskClass + " is abstract";
log(message, Project.MSG_ERR);
throw new BuildException(message);
}
try {
taskClass.getConstructor(null);
// don't have to check for public, since
// getConstructor finds public constructors only.
} catch (NoSuchMethodException e) {
final String message = "No public no-arg constructor in "
+ taskClass;
log(message, Project.MSG_ERR);
throw new BuildException(message);
}
if (!Task.class.isAssignableFrom(taskClass)) {
TaskAdapter.checkTaskClass(taskClass, this);
}
}
/**
* Returns the current task definition hashtable. The returned hashtable is
* "live" and so should not be modified.
*
* @return a map of from task name to implementing class
* (String to Class).
*/
public Hashtable getTaskDefinitions() {
return ComponentHelper.getComponentHelper(this).getTaskDefinitions();
}
/**
* Adds a new datatype definition.
* Attempting to override an existing definition with an
* equivalent one (i.e. with the same classname) results in
* a verbose log message. Attempting to override an existing definition
* with a different one results in a warning log message, but the
* definition is changed.
*
* @param typeName The name of the datatype.
* Must not be <code>null</code>.
* @param typeClass The full name of the class implementing the datatype.
* Must not be <code>null</code>.
*/
public void addDataTypeDefinition(String typeName, Class typeClass) {
ComponentHelper.getComponentHelper(this).addDataTypeDefinition(typeName,
typeClass);
}
/**
* Returns the current datatype definition hashtable. The returned
* hashtable is "live" and so should not be modified.
*
* @return a map of from datatype name to implementing class
* (String to Class).
*/
public Hashtable getDataTypeDefinitions() {
return ComponentHelper.getComponentHelper(this).getDataTypeDefinitions();
}
/**
* Adds a <em>new</em> target to the project.
*
* @param target The target to be added to the project.
* Must not be <code>null</code>.
*
* @exception BuildException if the target already exists in the project
*
* @see Project#addOrReplaceTarget
*/
public void addTarget(Target target) throws BuildException {
String name = target.getName();
if (targets.get(name) != null) {
throw new BuildException("Duplicate target: `" + name + "'");
}
addOrReplaceTarget(name, target);
}
/**
* Adds a <em>new</em> target to the project.
*
* @param targetName The name to use for the target.
* Must not be <code>null</code>.
* @param target The target to be added to the project.
* Must not be <code>null</code>.
*
* @exception BuildException if the target already exists in the project
*
* @see Project#addOrReplaceTarget
*/
public void addTarget(String targetName, Target target)
throws BuildException {
if (targets.get(targetName) != null) {
throw new BuildException("Duplicate target: `" + targetName + "'");
}
addOrReplaceTarget(targetName, target);
}
/**
* Adds a target to the project, or replaces one with the same
* name.
*
* @param target The target to be added or replaced in the project.
* Must not be <code>null</code>.
*/
public void addOrReplaceTarget(Target target) {
addOrReplaceTarget(target.getName(), target);
}
/**
* Adds a target to the project, or replaces one with the same
* name.
*
* @param targetName The name to use for the target.
* Must not be <code>null</code>.
* @param target The target to be added or replaced in the project.
* Must not be <code>null</code>.
*/
public void addOrReplaceTarget(String targetName, Target target) {
String msg = " +Target: " + targetName;
log(msg, MSG_DEBUG);
target.setProject(this);
targets.put(targetName, target);
}
/**
* Returns the hashtable of targets. The returned hashtable
* is "live" and so should not be modified.
* @return a map from name to target (String to Target).
*/
public Hashtable getTargets() {
return targets;
}
/**
* Creates a new instance of a task, adding it to a list of
* created tasks for later invalidation. This causes all tasks
* to be remembered until the containing project is removed
* @param taskType The name of the task to create an instance of.
* Must not be <code>null</code>.
*
* @return an instance of the specified task, or <code>null</code> if
* the task name is not recognised.
*
* @exception BuildException if the task name is recognised but task
* creation fails.
*/
public Task createTask(String taskType) throws BuildException {
return ComponentHelper.getComponentHelper(this).createTask(taskType);
}
/**
* Creates a new instance of a data type.
*
* @param typeName The name of the data type to create an instance of.
* Must not be <code>null</code>.
*
* @return an instance of the specified data type, or <code>null</code> if
* the data type name is not recognised.
*
* @exception BuildException if the data type name is recognised but
* instance creation fails.
*/
public Object createDataType(String typeName) throws BuildException {
return ComponentHelper.getComponentHelper(this).createDataType(typeName);
}
/**
* Execute the specified sequence of targets, and the targets
* they depend on.
*
* @param targetNames A vector of target name strings to execute.
* Must not be <code>null</code>.
*
* @exception BuildException if the build failed
*/
public void executeTargets(Vector targetNames) throws BuildException {
for (int i = 0; i < targetNames.size(); i++) {
executeTarget((String) targetNames.elementAt(i));
}
}
/**
* Demultiplexes output so that each task receives the appropriate
* messages. If the current thread is not currently executing a task,
* the message is logged directly.
*
* @param output Message to handle. Should not be <code>null</code>.
* @param isWarning Whether the text represents an warning (<code>true</code>)
* or information (<code>false</code>).
*/
public void demuxOutput(String output, boolean isWarning) {
Task task = getThreadTask(Thread.currentThread());
if (task == null) {
log(output, isWarning ? MSG_WARN : MSG_INFO);
} else {
if (isWarning) {
task.handleErrorOutput(output);
} else {
task.handleOutput(output);
}
}
}
/**
* Read data from the default input stream. If no default has been
* specified, System.in is used.
*
* @param buffer the buffer into which data is to be read.
* @param offset the offset into the buffer at which data is stored.
* @param length the amount of data to read
*
* @return the number of bytes read
*
* @exception IOException if the data cannot be read
* @since Ant 1.6
*/
public int defaultInput(byte[] buffer, int offset, int length)
throws IOException {
if (defaultInputStream != null) {
System.out.flush();
return defaultInputStream.read(buffer, offset, length);
} else {
throw new EOFException("No input provided for project");
}
}
/**
* Demux an input request to the correct task.
*
* @param buffer the buffer into which data is to be read.
* @param offset the offset into the buffer at which data is stored.
* @param length the amount of data to read
*
* @return the number of bytes read
*
* @exception IOException if the data cannot be read
* @since Ant 1.6
*/
public int demuxInput(byte[] buffer, int offset, int length)
throws IOException {
Task task = getThreadTask(Thread.currentThread());
if (task == null) {
return defaultInput(buffer, offset, length);
} else {
return task.handleInput(buffer, offset, length);
}
}
/**
* Demultiplexes flush operation so that each task receives the appropriate
* messages. If the current thread is not currently executing a task,
* the message is logged directly.
*
* @since Ant 1.5.2
*
* @param output Message to handle. Should not be <code>null</code>.
* @param isError Whether the text represents an error (<code>true</code>)
* or information (<code>false</code>).
*/
public void demuxFlush(String output, boolean isError) {
Task task = getThreadTask(Thread.currentThread());
if (task == null) {
fireMessageLogged(this, output, isError ? MSG_ERR : MSG_INFO);
} else {
if (isError) {
task.handleErrorFlush(output);
} else {
task.handleFlush(output);
}
}
}
/**
* Executes the specified target and any targets it depends on.
*
* @param targetName The name of the target to execute.
* Must not be <code>null</code>.
*
* @exception BuildException if the build failed
*/
public void executeTarget(String targetName) throws BuildException {
// sanity check ourselves, if we've been asked to build nothing
// then we should complain
if (targetName == null) {
String msg = "No target specified";
throw new BuildException(msg);
}
// Sort the dependency tree, and run everything from the
// beginning until we hit our targetName.
// Sorting checks if all the targets (and dependencies)
// exist, and if there is any cycle in the dependency
// graph.
Vector sortedTargets = topoSort(targetName, targets);
Set succeededTargets = new HashSet();
BuildException buildException = null; // first build exception
for (Enumeration iter = sortedTargets.elements();
iter.hasMoreElements();) {
Target curtarget = (Target) iter.nextElement();
boolean canExecute = true;
for (Enumeration depIter = curtarget.getDependencies();
depIter.hasMoreElements();) {
String dependencyName = ((String) depIter.nextElement());
if (!succeededTargets.contains(dependencyName)) {
canExecute = false;
log(curtarget,
"Cannot execute '" + curtarget.getName() + "' - '"
+ dependencyName + "' failed or was not executed.",
MSG_ERR);
break;
}
}
if (canExecute) {
Throwable thrownException = null;
try {
curtarget.performTasks();
succeededTargets.add(curtarget.getName());
} catch (RuntimeException ex) {
if (!(keepGoingMode)) {
throw ex; // throw further
}
thrownException = ex;
} catch (Throwable ex) {
if (!(keepGoingMode)) {
throw new BuildException(ex);
}
thrownException = ex;
}
if (thrownException != null) {
if (thrownException instanceof BuildException) {
log(curtarget,
"Target '" + curtarget.getName()
+ "' failed with message '"
+ thrownException.getMessage() + "'.", MSG_ERR);
// only the first build exception is reported
if (buildException == null) {
buildException = (BuildException) thrownException;
}
} else {
log(curtarget,
"Target '" + curtarget.getName()
+ "' failed with message '"
+ thrownException.getMessage() + "'.", MSG_ERR);
thrownException.printStackTrace(System.err);
if (buildException == null) {
buildException =
new BuildException(thrownException);
}
}
}
}
if (curtarget.getName().equals(targetName)) { // old exit condition
break;
}
}
if (buildException != null) {
throw buildException;
}
}
/**
* Returns the canonical form of a filename.
* <p>
* If the specified file name is relative it is resolved
* with respect to the given root directory.
*
* @param fileName The name of the file to resolve.
* Must not be <code>null</code>.
*
* @param rootDir The directory to resolve relative file names with
* respect to. May be <code>null</code>, in which case
* the current directory is used.
*
* @return the resolved File.
*
* @deprecated
*/
public File resolveFile(String fileName, File rootDir) {
return fileUtils.resolveFile(rootDir, fileName);
}
/**
* Returns the canonical form of a filename.
* <p>
* If the specified file name is relative it is resolved
* with respect to the project's base directory.
*
* @param fileName The name of the file to resolve.
* Must not be <code>null</code>.
*
* @return the resolved File.
*
*/
public File resolveFile(String fileName) {
return fileUtils.resolveFile(baseDir, fileName);
}
/**
* Translates a path into its native (platform specific) format.
* <p>
* This method uses PathTokenizer to separate the input path
* into its components. This handles DOS style paths in a relatively
* sensible way. The file separators are then converted to their platform
* specific versions.
*
* @param toProcess The path to be translated.
* May be <code>null</code>.
*
* @return the native version of the specified path or
* an empty string if the path is <code>null</code> or empty.
*
* @see PathTokenizer
*/
public static String translatePath(String toProcess) {
if (toProcess == null || toProcess.length() == 0) {
return "";
}
StringBuffer path = new StringBuffer(toProcess.length() + 50);
PathTokenizer tokenizer = new PathTokenizer(toProcess);
while (tokenizer.hasMoreTokens()) {
String pathComponent = tokenizer.nextToken();
pathComponent = pathComponent.replace('/', File.separatorChar);
pathComponent = pathComponent.replace('\\', File.separatorChar);
if (path.length() != 0) {
path.append(File.pathSeparatorChar);
}
path.append(pathComponent);
}
return path.toString();
}
/**
* Convenience method to copy a file from a source to a destination.
* No filtering is performed.
*
* @param sourceFile Name of file to copy from.
* Must not be <code>null</code>.
* @param destFile Name of file to copy to.
* Must not be <code>null</code>.
*
* @exception IOException if the copying fails
*
* @deprecated
*/
public void copyFile(String sourceFile, String destFile)
throws IOException {
fileUtils.copyFile(sourceFile, destFile);
}
/**
* Convenience method to copy a file from a source to a destination
* specifying if token filtering should be used.
*
* @param sourceFile Name of file to copy from.
* Must not be <code>null</code>.
* @param destFile Name of file to copy to.
* Must not be <code>null</code>.
* @param filtering Whether or not token filtering should be used during
* the copy.
*
* @exception IOException if the copying fails
*
* @deprecated
*/
public void copyFile(String sourceFile, String destFile, boolean filtering)
throws IOException {
fileUtils.copyFile(sourceFile, destFile,
filtering ? globalFilters : null);
}
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering should be used and if
* source files may overwrite newer destination files.
*
* @param sourceFile Name of file to copy from.
* Must not be <code>null</code>.
* @param destFile Name of file to copy to.
* Must not be <code>null</code>.
* @param filtering Whether or not token filtering should be used during
* the copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
*
* @exception IOException if the copying fails
*
* @deprecated
*/
public void copyFile(String sourceFile, String destFile, boolean filtering,
boolean overwrite) throws IOException {
fileUtils.copyFile(sourceFile, destFile,
filtering ? globalFilters : null, overwrite);
}
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering should be used, if
* source files may overwrite newer destination files, and if the
* last modified time of the resulting file should be set to
* that of the source file.
*
* @param sourceFile Name of file to copy from.
* Must not be <code>null</code>.
* @param destFile Name of file to copy to.
* Must not be <code>null</code>.
* @param filtering Whether or not token filtering should be used during
* the copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
* @param preserveLastModified Whether or not the last modified time of
* the resulting file should be set to that
* of the source file.
*
* @exception IOException if the copying fails
*
* @deprecated
*/
public void copyFile(String sourceFile, String destFile, boolean filtering,
boolean overwrite, boolean preserveLastModified)
throws IOException {
fileUtils.copyFile(sourceFile, destFile,
filtering ? globalFilters : null, overwrite, preserveLastModified);
}
/**
* Convenience method to copy a file from a source to a destination.
* No filtering is performed.
*
* @param sourceFile File to copy from.
* Must not be <code>null</code>.
* @param destFile File to copy to.
* Must not be <code>null</code>.
*
* @exception IOException if the copying fails
*
* @deprecated
*/
public void copyFile(File sourceFile, File destFile) throws IOException {
fileUtils.copyFile(sourceFile, destFile);
}
/**
* Convenience method to copy a file from a source to a destination
* specifying if token filtering should be used.
*
* @param sourceFile File to copy from.
* Must not be <code>null</code>.
* @param destFile File to copy to.
* Must not be <code>null</code>.
* @param filtering Whether or not token filtering should be used during
* the copy.
*
* @exception IOException if the copying fails
*
* @deprecated
*/
public void copyFile(File sourceFile, File destFile, boolean filtering)
throws IOException {
fileUtils.copyFile(sourceFile, destFile,
filtering ? globalFilters : null);
}
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering should be used and if
* source files may overwrite newer destination files.
*
* @param sourceFile File to copy from.
* Must not be <code>null</code>.
* @param destFile File to copy to.
* Must not be <code>null</code>.
* @param filtering Whether or not token filtering should be used during
* the copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
*
* @exception IOException if the file cannot be copied.
*
* @deprecated
*/
public void copyFile(File sourceFile, File destFile, boolean filtering,
boolean overwrite) throws IOException {
fileUtils.copyFile(sourceFile, destFile,
filtering ? globalFilters : null, overwrite);
}
/**
* Convenience method to copy a file from a source to a
* destination specifying if token filtering should be used, if
* source files may overwrite newer destination files, and if the
* last modified time of the resulting file should be set to
* that of the source file.
*
* @param sourceFile File to copy from.
* Must not be <code>null</code>.
* @param destFile File to copy to.
* Must not be <code>null</code>.
* @param filtering Whether or not token filtering should be used during
* the copy.
* @param overwrite Whether or not the destination file should be
* overwritten if it already exists.
* @param preserveLastModified Whether or not the last modified time of
* the resulting file should be set to that
* of the source file.
*
* @exception IOException if the file cannot be copied.
*
* @deprecated
*/
public void copyFile(File sourceFile, File destFile, boolean filtering,
boolean overwrite, boolean preserveLastModified)
throws IOException {
fileUtils.copyFile(sourceFile, destFile,
filtering ? globalFilters : null, overwrite, preserveLastModified);
}
/**
* Calls File.setLastModified(long time) on Java above 1.1, and logs
* a warning on Java 1.1.
*
* @param file The file to set the last modified time on.
* Must not be <code>null</code>.
*
* @param time the required modification time.
*
* @deprecated
*
* @exception BuildException if the last modified time cannot be set
* despite running on a platform with a version
* above 1.1.
*/
public void setFileLastModified(File file, long time)
throws BuildException {
if (JavaEnvUtils.isJavaVersion(JavaEnvUtils.JAVA_1_1)) {
log("Cannot change the modification time of " + file
+ " in JDK 1.1", Project.MSG_WARN);
return;
}
fileUtils.setFileLastModified(file, time);
log("Setting modification time for " + file, MSG_VERBOSE);
}
/**
* Returns the boolean equivalent of a string, which is considered
* <code>true</code> if either <code>"on"</code>, <code>"true"</code>,
* or <code>"yes"</code> is found, ignoring case.
*
* @param s The string to convert to a boolean value.
*
* @return <code>true</code> if the given string is <code>"on"</code>,
* <code>"true"</code> or <code>"yes"</code>, or
* <code>false</code> otherwise.
*/
public static boolean toBoolean(String s) {
return ("on".equalsIgnoreCase(s)
|| "true".equalsIgnoreCase(s)
|| "yes".equalsIgnoreCase(s));
}
/**
* Topologically sorts a set of targets.
*
* @param root The name of the root target. The sort is created in such
* a way that the sequence of Targets up to the root
* target is the minimum possible such sequence.
* Must not be <code>null</code>.
* @param targets A map of names to targets (String to Target).
* Must not be <code>null</code>.
* @return a vector of Target objects in sorted order.
* @exception BuildException if there is a cyclic dependency among the
* targets, or if a named target does not exist.
*/
public final Vector topoSort(String root, Hashtable targets)
throws BuildException {
Vector ret = new Vector();
Hashtable state = new Hashtable();
Stack visiting = new Stack();
// We first run a DFS based sort using the root as the starting node.
// This creates the minimum sequence of Targets to the root node.
// We then do a sort on any remaining unVISITED targets.
// This is unnecessary for doing our build, but it catches
// circular dependencies or missing Targets on the entire
// dependency tree, not just on the Targets that depend on the
// build Target.
tsort(root, targets, state, visiting, ret);
log("Build sequence for target `" + root + "' is " + ret, MSG_VERBOSE);
for (Enumeration en = targets.keys(); en.hasMoreElements();) {
String curTarget = (String) en.nextElement();
String st = (String) state.get(curTarget);
if (st == null) {
tsort(curTarget, targets, state, visiting, ret);
} else if (st == VISITING) {
throw new RuntimeException("Unexpected node in visiting state: "
+ curTarget);
}
}
log("Complete build sequence is " + ret, MSG_VERBOSE);
return ret;
}
/**
* Performs a single step in a recursive depth-first-search traversal of
* the target dependency tree.
* <p>
* The current target is first set to the "visiting" state, and pushed
* onto the "visiting" stack.
* <p>
* An exception is then thrown if any child of the current node is in the
* visiting state, as that implies a circular dependency. The exception
* contains details of the cycle, using elements of the "visiting" stack.
* <p>
* If any child has not already been "visited", this method is called
* recursively on it.
* <p>
* The current target is then added to the ordered list of targets. Note
* that this is performed after the children have been visited in order
* to get the correct order. The current target is set to the "visited"
* state.
* <p>
* By the time this method returns, the ordered list contains the sequence
* of targets up to and including the current target.
*
* @param root The current target to inspect.
* Must not be <code>null</code>.
* @param targets A mapping from names to targets (String to Target).
* Must not be <code>null</code>.
* @param state A mapping from target names to states
* (String to String).
* The states in question are "VISITING" and "VISITED".
* Must not be <code>null</code>.
* @param visiting A stack of targets which are currently being visited.
* Must not be <code>null</code>.
* @param ret The list to add target names to. This will end up
* containing the complete list of dependencies in
* dependency order.
* Must not be <code>null</code>.
*
* @exception BuildException if a non-existent target is specified or if
* a circular dependency is detected.
*/
private final void tsort(String root, Hashtable targets,
Hashtable state, Stack visiting,
Vector ret)
throws BuildException {
state.put(root, VISITING);
visiting.push(root);
Target target = (Target) targets.get(root);
// Make sure we exist
if (target == null) {
StringBuffer sb = new StringBuffer("Target `");
sb.append(root);
sb.append("' does not exist in this project. ");
visiting.pop();
if (!visiting.empty()) {
String parent = (String) visiting.peek();
sb.append("It is used from target `");
sb.append(parent);
sb.append("'.");
}
throw new BuildException(new String(sb));
}
for (Enumeration en = target.getDependencies(); en.hasMoreElements();) {
String cur = (String) en.nextElement();
String m = (String) state.get(cur);
if (m == null) {
// Not been visited
tsort(cur, targets, state, visiting, ret);
} else if (m == VISITING) {
// Currently visiting this node, so have a cycle
throw makeCircularException(cur, visiting);
}
}
String p = (String) visiting.pop();
if (root != p) {
throw new RuntimeException("Unexpected internal error: expected to "
+ "pop " + root + " but got " + p);
}
state.put(root, VISITED);
ret.addElement(target);
}
/**
* Builds an appropriate exception detailing a specified circular
* dependency.
*
* @param end The dependency to stop at. Must not be <code>null</code>.
* @param stk A stack of dependencies. Must not be <code>null</code>.
*
* @return a BuildException detailing the specified circular dependency.
*/
private static BuildException makeCircularException(String end, Stack stk) {
StringBuffer sb = new StringBuffer("Circular dependency: ");
sb.append(end);
String c;
do {
c = (String) stk.pop();
sb.append(" <- ");
sb.append(c);
} while (!c.equals(end));
return new BuildException(new String(sb));
}
/**
* Adds a reference to the project.
*
* @param name The name of the reference. Must not be <code>null</code>.
* @param value The value of the reference. Must not be <code>null</code>.
*/
public void addReference(String name, Object value) {
synchronized (references) {
Object old = ((AntRefTable) references).getReal(name);
if (old == value) {
// no warning, this is not changing anything
return;
}
if (old != null && !(old instanceof UnknownElement)) {
log("Overriding previous definition of reference to " + name,
MSG_WARN);
}
log("Adding reference: " + name, MSG_DEBUG);
references.put(name, value);
}
}
/**
* Returns a map of the references in the project (String to Object).
* The returned hashtable is "live" and so must not be modified.
*
* @return a map of the references in the project (String to Object).
*/
public Hashtable getReferences() {
return references;
}
/**
* Looks up a reference by its key (ID).
*
* @param key The key for the desired reference.
* Must not be <code>null</code>.
*
* @return the reference with the specified ID, or <code>null</code> if
* there is no such reference in the project.
*/
public Object getReference(String key) {
return references.get(key);
}
/**
* Returns a description of the type of the given element, with
* special handling for instances of tasks and data types.
* <p>
* This is useful for logging purposes.
*
* @param element The element to describe.
* Must not be <code>null</code>.
*
* @return a description of the element type
*
* @since 1.95, Ant 1.5
*/
public String getElementName(Object element) {
return ComponentHelper.getComponentHelper(this).getElementName(element);
}
/**
* Sends a "build started" event to the build listeners for this project.
*/
public void fireBuildStarted() {
BuildEvent event = new BuildEvent(this);
Iterator iter = listeners.iterator();
while (iter.hasNext()) {
BuildListener listener = (BuildListener) iter.next();
listener.buildStarted(event);
}
}
/**
* Sends a "build finished" event to the build listeners for this project.
* @param exception an exception indicating a reason for a build
* failure. May be <code>null</code>, indicating
* a successful build.
*/
public void fireBuildFinished(Throwable exception) {
BuildEvent event = new BuildEvent(this);
event.setException(exception);
Iterator iter = listeners.iterator();
while (iter.hasNext()) {
BuildListener listener = (BuildListener) iter.next();
listener.buildFinished(event);
}
}
/**
* Sends a "target started" event to the build listeners for this project.
*
* @param target The target which is starting to build.
* Must not be <code>null</code>.
*/
protected void fireTargetStarted(Target target) {
BuildEvent event = new BuildEvent(target);
Iterator iter = listeners.iterator();
while (iter.hasNext()) {
BuildListener listener = (BuildListener) iter.next();
listener.targetStarted(event);
}
}
/**
* Sends a "target finished" event to the build listeners for this
* project.
*
* @param target The target which has finished building.
* Must not be <code>null</code>.
* @param exception an exception indicating a reason for a build
* failure. May be <code>null</code>, indicating
* a successful build.
*/
protected void fireTargetFinished(Target target, Throwable exception) {
BuildEvent event = new BuildEvent(target);
event.setException(exception);
Iterator iter = listeners.iterator();
while (iter.hasNext()) {
BuildListener listener = (BuildListener) iter.next();
listener.targetFinished(event);
}
}
/**
* Sends a "task started" event to the build listeners for this project.
*
* @param task The target which is starting to execute.
* Must not be <code>null</code>.
*/
protected void fireTaskStarted(Task task) {
// register this as the current task on the current thread.
registerThreadTask(Thread.currentThread(), task);
BuildEvent event = new BuildEvent(task);
Iterator iter = listeners.iterator();
while (iter.hasNext()) {
BuildListener listener = (BuildListener) iter.next();
listener.taskStarted(event);
}
}
/**
* Sends a "task finished" event to the build listeners for this
* project.
*
* @param task The task which has finished executing.
* Must not be <code>null</code>.
* @param exception an exception indicating a reason for a build
* failure. May be <code>null</code>, indicating
* a successful build.
*/
protected void fireTaskFinished(Task task, Throwable exception) {
registerThreadTask(Thread.currentThread(), null);
System.out.flush();
System.err.flush();
BuildEvent event = new BuildEvent(task);
event.setException(exception);
Iterator iter = listeners.iterator();
while (iter.hasNext()) {
BuildListener listener = (BuildListener) iter.next();
listener.taskFinished(event);
}
}
/**
* Sends a "message logged" event to the build listeners for this project.
*
* @param event The event to send. This should be built up with the
* appropriate task/target/project by the caller, so that
* this method can set the message and priority, then send
* the event. Must not be <code>null</code>.
* @param message The message to send. Should not be <code>null</code>.
* @param priority The priority of the message.
*/
private void fireMessageLoggedEvent(BuildEvent event, String message,
int priority) {
if (message.endsWith(StringUtils.LINE_SEP)) {
int endIndex = message.length() - StringUtils.LINE_SEP.length();
event.setMessage(message.substring(0, endIndex), priority);
} else {
event.setMessage(message, priority);
}
synchronized (this) {
if (loggingMessage) {
throw new BuildException("Listener attempted to access "
+ (priority == MSG_ERR ? "System.err" : "System.out")
+ " - infinite loop terminated");
}
try {
loggingMessage = true;
Iterator iter = listeners.iterator();
while (iter.hasNext()) {
BuildListener listener = (BuildListener) iter.next();
listener.messageLogged(event);
}
} finally {
loggingMessage = false;
}
}
}
/**
* Sends a "message logged" project level event to the build listeners for
* this project.
*
* @param project The project generating the event.
* Should not be <code>null</code>.
* @param message The message to send. Should not be <code>null</code>.
* @param priority The priority of the message.
*/
protected void fireMessageLogged(Project project, String message,
int priority) {
BuildEvent event = new BuildEvent(project);
fireMessageLoggedEvent(event, message, priority);
}
/**
* Sends a "message logged" target level event to the build listeners for
* this project.
*
* @param target The target generating the event.
* Must not be <code>null</code>.
* @param message The message to send. Should not be <code>null</code>.
* @param priority The priority of the message.
*/
protected void fireMessageLogged(Target target, String message,
int priority) {
BuildEvent event = new BuildEvent(target);
fireMessageLoggedEvent(event, message, priority);
}
/**
* Sends a "message logged" task level event to the build listeners for
* this project.
*
* @param task The task generating the event.
* Must not be <code>null</code>.
* @param message The message to send. Should not be <code>null</code>.
* @param priority The priority of the message.
*/
protected void fireMessageLogged(Task task, String message, int priority) {
BuildEvent event = new BuildEvent(task);
fireMessageLoggedEvent(event, message, priority);
}
/**
* Register a task as the current task for a thread.
* If the task is null, the thread's entry is removed.
*
* @param thread the thread on which the task is registered.
* @param task the task to be registered.
* @since Ant 1.5
*/
public synchronized void registerThreadTask(Thread thread, Task task) {
if (task != null) {
threadTasks.put(thread, task);
threadGroupTasks.put(thread.getThreadGroup(), task);
} else {
threadTasks.remove(thread);
threadGroupTasks.remove(thread.getThreadGroup());
}
}
/**
* Get the current task associated with a thread, if any
*
* @param thread the thread for which the task is required.
* @return the task which is currently registered for the given thread or
* null if no task is registered.
*/
public Task getThreadTask(Thread thread) {
Task task = (Task) threadTasks.get(thread);
if (task == null) {
ThreadGroup group = thread.getThreadGroup();
while (task == null && group != null) {
task = (Task) threadGroupTasks.get(group);
group = group.getParent();
}
}
return task;
}
// Should move to a separate public class - and have API to add
// listeners, etc.
private static class AntRefTable extends Hashtable {
private Project project;
public AntRefTable(Project project) {
super();
this.project = project;
}
/** Returns the unmodified original object.
* This method should be called internally to
* get the 'real' object.
* The normal get method will do the replacement
* of UnknownElement ( this is similar with the JDNI
* refs behavior )
*/
public Object getReal(Object key) {
return super.get(key);
}
/** Get method for the reference table.
* It can be used to hook dynamic references and to modify
* some references on the fly - for example for delayed
* evaluation.
*
* It is important to make sure that the processing that is
* done inside is not calling get indirectly.
*
* @param key
* @return
*/
public Object get(Object key) {
//System.out.println("AntRefTable.get " + key);
Object o = super.get(key);
if (o instanceof UnknownElement) {
// Make sure that
UnknownElement ue = (UnknownElement) o;
ue.maybeConfigure();
o = ue.getRealThing();
}
return o;
}
}
/**
* Set a reference to this Project on the parameterized object.
* Need to set the project before other set/add elements
* are called
* @param obj the object to invoke setProject(this) on
*/
public final void setProjectReference(final Object obj) {
if (obj instanceof ProjectComponent) {
((ProjectComponent) obj).setProject(this);
return;
}
try {
Method method =
obj.getClass().getMethod(
"setProject", new Class[] {Project.class});
if (method != null) {
method.invoke(obj, new Object[] {this});
}
} catch (Throwable e) {
// ignore this if the object does not have
// a set project method or the method
// is private/protected.
}
}
}