| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| package org.apache.tools.ant.types.selectors; |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.types.Parameter; |
| import org.apache.tools.ant.types.Resource; |
| import org.apache.tools.ant.types.resources.FileResource; |
| import org.apache.tools.ant.types.resources.selectors.ResourceSelector; |
| import org.apache.tools.ant.util.FileUtils; |
| |
| /** |
| * Selector that filters files/resources based on whether they contain a |
| * particular string. |
| * |
| * @since 1.5 |
| */ |
| public class ContainsSelector extends BaseExtendSelector implements ResourceSelector { |
| |
| private String contains = null; |
| private boolean casesensitive = true; |
| private boolean ignorewhitespace = false; |
| /** Key to used for parameterized custom selector */ |
| public static final String EXPRESSION_KEY = "expression"; |
| /** Used for parameterized custom selector */ |
| public static final String CONTAINS_KEY = "text"; |
| /** Used for parameterized custom selector */ |
| public static final String CASE_KEY = "casesensitive"; |
| /** Used for parameterized custom selector */ |
| public static final String WHITESPACE_KEY = "ignorewhitespace"; |
| |
| |
| /** |
| * Creates a new <code>ContainsSelector</code> instance. |
| * |
| */ |
| public ContainsSelector() { |
| } |
| |
| /** |
| * @return a string describing this object |
| */ |
| public String toString() { |
| StringBuffer buf = new StringBuffer("{containsselector text: "); |
| buf.append('"').append(contains).append('"'); |
| buf.append(" casesensitive: "); |
| buf.append(casesensitive ? "true" : "false"); |
| buf.append(" ignorewhitespace: "); |
| buf.append(ignorewhitespace ? "true" : "false"); |
| buf.append("}"); |
| return buf.toString(); |
| } |
| |
| /** |
| * The string to search for within a file. |
| * |
| * @param contains the string that a file must contain to be selected. |
| */ |
| public void setText(String contains) { |
| this.contains = contains; |
| } |
| |
| /** |
| * Whether to ignore case in the string being searched. |
| * |
| * @param casesensitive whether to pay attention to case sensitivity |
| */ |
| public void setCasesensitive(boolean casesensitive) { |
| this.casesensitive = casesensitive; |
| } |
| |
| /** |
| * Whether to ignore whitespace in the string being searched. |
| * |
| * @param ignorewhitespace whether to ignore any whitespace |
| * (spaces, tabs, etc.) in the searchstring |
| */ |
| public void setIgnorewhitespace(boolean ignorewhitespace) { |
| this.ignorewhitespace = ignorewhitespace; |
| } |
| |
| /** |
| * When using this as a custom selector, this method will be called. |
| * It translates each parameter into the appropriate setXXX() call. |
| * |
| * @param parameters the complete set of parameters for this selector |
| */ |
| public void setParameters(Parameter[] parameters) { |
| super.setParameters(parameters); |
| if (parameters != null) { |
| for (int i = 0; i < parameters.length; i++) { |
| String paramname = parameters[i].getName(); |
| if (CONTAINS_KEY.equalsIgnoreCase(paramname)) { |
| setText(parameters[i].getValue()); |
| } else if (CASE_KEY.equalsIgnoreCase(paramname)) { |
| setCasesensitive(Project.toBoolean( |
| parameters[i].getValue())); |
| } else if (WHITESPACE_KEY.equalsIgnoreCase(paramname)) { |
| setIgnorewhitespace(Project.toBoolean( |
| parameters[i].getValue())); |
| } else { |
| setError("Invalid parameter " + paramname); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Checks to make sure all settings are kosher. In this case, it |
| * means that the pattern attribute has been set. |
| * |
| */ |
| public void verifySettings() { |
| if (contains == null) { |
| setError("The text attribute is required"); |
| } |
| } |
| |
| /** |
| * The heart of the matter. This is where the selector gets to decide |
| * on the inclusion of a file in a particular fileset. |
| * |
| * @param basedir the base directory the scan is being done from |
| * @param filename is the name of the file to check |
| * @param file is a java.io.File object the selector can use |
| * @return whether the file should be selected or not |
| */ |
| public boolean isSelected(File basedir, String filename, File file) { |
| return isSelected(new FileResource(file)); |
| } |
| |
| /** |
| * The heart of the matter. This is where the selector gets to decide |
| * on the inclusion of a Resource. |
| * |
| * @param r the Resource to check. |
| * @return whether the Resource is selected. |
| */ |
| public boolean isSelected(Resource r) { |
| |
| // throw BuildException on error |
| validate(); |
| |
| if (r.isDirectory() || contains.length() == 0) { |
| return true; |
| } |
| |
| String userstr = contains; |
| if (!casesensitive) { |
| userstr = contains.toLowerCase(); |
| } |
| if (ignorewhitespace) { |
| userstr = SelectorUtils.removeWhitespace(userstr); |
| } |
| BufferedReader in = null; |
| try { |
| in = new BufferedReader(new InputStreamReader(r.getInputStream())); |
| } catch (Exception e) { |
| throw new BuildException("Could not get InputStream from " |
| + r.toLongString(), e); |
| } |
| try { |
| String teststr = in.readLine(); |
| while (teststr != null) { |
| if (!casesensitive) { |
| teststr = teststr.toLowerCase(); |
| } |
| if (ignorewhitespace) { |
| teststr = SelectorUtils.removeWhitespace(teststr); |
| } |
| if (teststr.indexOf(userstr) > -1) { |
| return true; |
| } |
| teststr = in.readLine(); |
| } |
| return false; |
| } catch (IOException ioe) { |
| throw new BuildException("Could not read " + r.toLongString()); |
| } finally { |
| FileUtils.close(in); |
| } |
| } |
| |
| } |
| |