diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/DefBase.java')
-rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/DefBase.java | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/DefBase.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/DefBase.java new file mode 100644 index 00000000..b52bbb72 --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/DefBase.java @@ -0,0 +1,167 @@ +/* + * 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; + +import org.apache.tools.ant.AntClassLoader; +import org.apache.tools.ant.BuildException; +import org.apache.tools.ant.Project; +import org.apache.tools.ant.types.Path; +import org.apache.tools.ant.types.Reference; +import org.apache.tools.ant.util.ClasspathUtils; + +/** + * Base class for Definitions handling uri and class loading. + * (This was part of Definer) + * + * @since Ant 1.6 + */ +public abstract class DefBase extends AntlibDefinition { + private ClassLoader createdLoader; + private ClasspathUtils.Delegate cpDelegate; + + /** + * Check if classpath attributes have been set. + * (to be called before getCpDelegate() is used. + * @return true if cpDelegate has been created. + */ + protected boolean hasCpDelegate() { + return cpDelegate != null; + } + + /** + * @param reverseLoader if true a delegated loader will take precedence over + * the parent + * @deprecated since 1.6.x. + * stop using this attribute + * @ant.attribute ignore="true" + */ + public void setReverseLoader(boolean reverseLoader) { + getDelegate().setReverseLoader(reverseLoader); + log("The reverseloader attribute is DEPRECATED. It will be removed", + Project.MSG_WARN); + } + + /** + * @return the classpath for this definition + */ + public Path getClasspath() { + return getDelegate().getClasspath(); + } + + /** + * @return the reverse loader attribute of the classpath delegate. + */ + public boolean isReverseLoader() { + return getDelegate().isReverseLoader(); + } + + /** + * Returns the loader id of the class path Delegate. + * @return the loader id + */ + public String getLoaderId() { + return getDelegate().getClassLoadId(); + } + + /** + * Returns the class path id of the class path delegate. + * @return the class path id + */ + public String getClasspathId() { + return getDelegate().getClassLoadId(); + } + + /** + * Set the classpath to be used when searching for component being defined. + * + * @param classpath an Ant Path object containing the classpath. + */ + public void setClasspath(Path classpath) { + getDelegate().setClasspath(classpath); + } + + /** + * Create the classpath to be used when searching for component being + * defined. + * @return the classpath of the this definition + */ + public Path createClasspath() { + return getDelegate().createClasspath(); + } + + /** + * Set a reference to a classpath to use when loading the files. + * To actually share the same loader, set loaderref as well + * @param r the reference to the classpath + */ + public void setClasspathRef(Reference r) { + getDelegate().setClasspathref(r); + } + + /** + * Use the reference to locate the loader. If the loader is not + * found, the specified classpath will be used and registered + * with the specified name. + * + * This allows multiple taskdef/typedef to use the same class loader, + * so they can be used together, eliminating the need to + * put them in the CLASSPATH. + * + * @param r the reference to locate the loader. + * @since Ant 1.5 + */ + public void setLoaderRef(Reference r) { + getDelegate().setLoaderRef(r); + } + + /** + * create a classloader for this definition + * @return the classloader from the cpDelegate + */ + protected ClassLoader createLoader() { + if (getAntlibClassLoader() != null && cpDelegate == null) { + return getAntlibClassLoader(); + } + if (createdLoader == null) { + createdLoader = getDelegate().getClassLoader(); + // need to load Task via system classloader or the new + // task we want to define will never be a Task but always + // be wrapped into a TaskAdapter. + ((AntClassLoader) createdLoader) + .addSystemPackageRoot("org.apache.tools.ant"); + } + return createdLoader; + } + + /** + * @see org.apache.tools.ant.Task#init() + * @throws BuildException on error. + * @since Ant 1.6 + */ + public void init() throws BuildException { + super.init(); + } + + private ClasspathUtils.Delegate getDelegate() { + if (cpDelegate == null) { + cpDelegate = ClasspathUtils.getDelegate(this); + } + return cpDelegate; + } +} |