| /* |
| * 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 |
| * |
| * https://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; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Stack; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Project; |
| |
| /** |
| * An AntFilterReader is a wrapper class that encloses the classname |
| * and configuration of a Configurable FilterReader. |
| */ |
| public final class AntFilterReader extends DataType { |
| |
| private String className; |
| |
| private final List<Parameter> parameters = new ArrayList<>(); |
| |
| private Path classpath; |
| |
| /** |
| * Set the className attribute. |
| * |
| * @param className a <code>String</code> value |
| */ |
| public void setClassName(final String className) { |
| if (isReference()) { |
| throw tooManyAttributes(); |
| } |
| this.className = className; |
| } |
| |
| /** |
| * Get the className attribute. |
| * |
| * @return a <code>String</code> value |
| */ |
| public String getClassName() { |
| if (isReference()) { |
| return getRef().getClassName(); |
| } |
| dieOnCircularReference(); |
| return className; |
| } |
| |
| /** |
| * Add a Parameter. |
| * |
| * @param param a <code>Parameter</code> value |
| */ |
| public void addParam(final Parameter param) { |
| if (isReference()) { |
| throw noChildrenAllowed(); |
| } |
| parameters.add(param); |
| } |
| |
| /** |
| * Set the classpath to load the FilterReader through (attribute). |
| * @param classpath a classpath |
| */ |
| public void setClasspath(Path classpath) { |
| if (isReference()) { |
| throw tooManyAttributes(); |
| } |
| if (this.classpath == null) { |
| this.classpath = classpath; |
| } else { |
| this.classpath.append(classpath); |
| } |
| setChecked(false); |
| } |
| |
| /** |
| * Set the classpath to load the FilterReader through (nested element). |
| * @return a classpath to be configured |
| */ |
| public Path createClasspath() { |
| if (isReference()) { |
| throw noChildrenAllowed(); |
| } |
| if (this.classpath == null) { |
| this.classpath = new Path(getProject()); |
| } |
| setChecked(false); |
| return this.classpath.createPath(); |
| } |
| |
| /** |
| * Get the classpath. |
| * @return the classpath |
| */ |
| public Path getClasspath() { |
| if (isReference()) { |
| getRef().getClasspath(); |
| } |
| dieOnCircularReference(); |
| return classpath; |
| } |
| |
| /** |
| * Set the classpath to load the FilterReader through via |
| * reference (attribute). |
| * @param r a reference to a classpath |
| */ |
| public void setClasspathRef(Reference r) { |
| if (isReference()) { |
| throw tooManyAttributes(); |
| } |
| createClasspath().setRefid(r); |
| } |
| |
| /** |
| * The parameters for this filter. |
| * |
| * @return a <code>Parameter[]</code> value |
| */ |
| public Parameter[] getParams() { |
| if (isReference()) { |
| getRef().getParams(); |
| } |
| dieOnCircularReference(); |
| return parameters.toArray(new Parameter[parameters.size()]); |
| } |
| |
| /** |
| * Makes this instance in effect a reference to another AntFilterReader |
| * instance. |
| * |
| * <p>You must not set another attribute or nest elements inside |
| * this element if you make it a reference.</p> |
| * |
| * @param r the reference to which this instance is associated |
| * @exception BuildException if this instance already has been configured. |
| */ |
| public void setRefid(Reference r) throws BuildException { |
| if (!parameters.isEmpty() || className != null |
| || classpath != null) { |
| throw tooManyAttributes(); |
| } |
| super.setRefid(r); |
| } |
| |
| protected synchronized void dieOnCircularReference(Stack<Object> stk, Project p) |
| throws BuildException { |
| if (isChecked()) { |
| return; |
| } |
| if (isReference()) { |
| super.dieOnCircularReference(stk, p); |
| } else { |
| if (classpath != null) { |
| pushAndInvokeCircularReferenceCheck(classpath, stk, p); |
| } |
| setChecked(true); |
| } |
| } |
| |
| private AntFilterReader getRef() { |
| return getCheckedRef(AntFilterReader.class); |
| } |
| } |