diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/extension/ExtensionSet.java')
-rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/extension/ExtensionSet.java | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/extension/ExtensionSet.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/extension/ExtensionSet.java new file mode 100644 index 00000000..5aba37c9 --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/extension/ExtensionSet.java @@ -0,0 +1,153 @@ +/* + * 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.taskdefs.optional.extension; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Iterator; +import java.util.Stack; + +import org.apache.tools.ant.BuildException; +import org.apache.tools.ant.Project; +import org.apache.tools.ant.types.DataType; +import org.apache.tools.ant.types.FileSet; +import org.apache.tools.ant.types.Reference; + +/** + * The Extension set lists a set of "Optional Packages" / + * "Extensions". + * + * @ant.datatype name="extension-set" + */ +public class ExtensionSet + extends DataType { + /** + * ExtensionAdapter objects representing extensions. + */ + private final ArrayList extensions = new ArrayList(); + + /** + * Filesets specifying all the extensions wanted. + */ + private final ArrayList extensionsFilesets = new ArrayList(); + + /** + * Adds an extension that this library requires. + * + * @param extensionAdapter an extension that this library requires. + */ + public void addExtension(final ExtensionAdapter extensionAdapter) { + if (isReference()) { + throw noChildrenAllowed(); + } + setChecked(false); + extensions.add(extensionAdapter); + } + + /** + * Adds a set of files about which extensions data will be extracted. + * + * @param fileSet a set of files about which extensions data will be extracted. + */ + public void addLibfileset(final LibFileSet fileSet) { + if (isReference()) { + throw noChildrenAllowed(); + } + setChecked(false); + extensionsFilesets.add(fileSet); + } + + /** + * Adds a set of files about which extensions data will be extracted. + * + * @param fileSet a set of files about which extensions data will be extracted. + */ + public void addFileset(final FileSet fileSet) { + if (isReference()) { + throw noChildrenAllowed(); + } + setChecked(false); + extensionsFilesets.add(fileSet); + } + + /** + * Extract a set of Extension objects from the ExtensionSet. + * + * @param proj the project instance. + * @return an array containing the Extensions from this set + * @throws BuildException if an error occurs + */ + public Extension[] toExtensions(final Project proj) + throws BuildException { + if (isReference()) { + return ((ExtensionSet) getCheckedRef()).toExtensions(proj); + } + dieOnCircularReference(); + final ArrayList extensionsList = ExtensionUtil.toExtensions(extensions); + ExtensionUtil.extractExtensions(proj, extensionsList, extensionsFilesets); + return (Extension[]) extensionsList.toArray(new Extension[extensionsList.size()]); + } + + /** + * Makes this instance in effect a reference to another ExtensionSet + * instance. + * + * <p>You must not set another attribute or nest elements inside + * this element if you make it a reference.</p> + * + * @param reference the reference to which this instance is associated + * @exception BuildException if this instance already has been configured. + */ + @Override + public void setRefid(final Reference reference) + throws BuildException { + if (!extensions.isEmpty() || !extensionsFilesets.isEmpty()) { + throw tooManyAttributes(); + } + super.setRefid(reference); + } + + @Override + protected synchronized void dieOnCircularReference(Stack stk, Project p) + throws BuildException { + if (isChecked()) { + return; + } + if (isReference()) { + super.dieOnCircularReference(stk, p); + } else { + for (Iterator i = extensions.iterator(); i.hasNext();) { + pushAndInvokeCircularReferenceCheck((ExtensionAdapter) i.next(), + stk, p); + } + for (Iterator i = extensionsFilesets.iterator(); i.hasNext();) { + pushAndInvokeCircularReferenceCheck((FileSet) i.next(), stk, p); + } + setChecked(true); + } + } + + /** + * @see java.lang.Object#toString() + * @return the extensions in a string. + */ + @Override + public String toString() { + return "ExtensionSet" + Arrays.asList(toExtensions(getProject())); + } +} |