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Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/TaskAdapter.java')
| -rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/TaskAdapter.java | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/TaskAdapter.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/TaskAdapter.java deleted file mode 100644 index 3a3001f6..00000000 --- a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/TaskAdapter.java +++ /dev/null @@ -1,182 +0,0 @@ -/* - * 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; - -import java.lang.reflect.Method; - -import org.apache.tools.ant.dispatch.DispatchUtils; -import org.apache.tools.ant.dispatch.Dispatchable; - -/** - * Uses introspection to "adapt" an arbitrary Bean which doesn't - * itself extend Task, but still contains an execute method and optionally - * a setProject method. - * - */ -public class TaskAdapter extends Task implements TypeAdapter { - - /** Object to act as a proxy for. */ - private Object proxy; - - /** - * No-arg constructor for reflection. - */ - public TaskAdapter() { - } - - /** - * Constructor for given proxy. - * So you could write easier code - * <pre> - * myTaskContainer.addTask( new TaskAdapter(myProxy) ); - * </pre> - * - * @param proxy The object which Ant should use as task. - */ - public TaskAdapter(Object proxy) { - this(); - setProxy(proxy); - } - - /** - * Checks whether or not a class is suitable to be adapted by TaskAdapter. - * If the class is of type Dispatchable, the check is not performed because - * the method that will be executed will be determined only at runtime of - * the actual task and not during parse time. - * - * This only checks conditions which are additionally required for - * tasks adapted by TaskAdapter. Thus, this method should be called by - * Project.checkTaskClass. - * - * Throws a BuildException and logs as Project.MSG_ERR for - * conditions that will cause the task execution to fail. - * Logs other suspicious conditions with Project.MSG_WARN. - * - * @param taskClass Class to test for suitability. - * Must not be <code>null</code>. - * @param project Project to log warnings/errors to. - * Must not be <code>null</code>. - * - * @see Project#checkTaskClass(Class) - */ - public static void checkTaskClass(final Class<?> taskClass, - final Project project) { - if (!Dispatchable.class.isAssignableFrom(taskClass)) { - // don't have to check for interface, since then - // taskClass would be abstract too. - try { - final Method executeM = taskClass.getMethod("execute", (Class[]) null); - // don't have to check for public, since - // getMethod finds public method only. - // don't have to check for abstract, since then - // taskClass would be abstract too. - if (!Void.TYPE.equals(executeM.getReturnType())) { - final String message = "return type of execute() should be " - + "void but was \"" + executeM.getReturnType() + "\" in " - + taskClass; - project.log(message, Project.MSG_WARN); - } - } catch (NoSuchMethodException e) { - final String message = "No public execute() in " + taskClass; - project.log(message, Project.MSG_ERR); - throw new BuildException(message); - } catch (LinkageError e) { - String message = "Could not load " + taskClass + ": " + e; - project.log(message, Project.MSG_ERR); - throw new BuildException(message, e); - } - } - } - - /** - * Check if the proxy class is a valid class to use - * with this adapter. - * The class must have a public no-arg "execute()" method. - * @param proxyClass the class to check. - */ - public void checkProxyClass(Class<?> proxyClass) { - checkTaskClass(proxyClass, getProject()); - } - - /** - * Executes the proxied task. - * - * @exception BuildException if the project could not be set - * or the method could not be executed. - */ - public void execute() throws BuildException { - try { - Method setLocationM = proxy.getClass().getMethod( - "setLocation", new Class[] {Location.class}); - if (setLocationM != null) { - setLocationM.invoke(proxy, new Object[] {getLocation()}); - } - } catch (NoSuchMethodException e) { - // ignore this if the class being used as a task does not have - // a set location method. - } catch (Exception ex) { - log("Error setting location in " + proxy.getClass(), - Project.MSG_ERR); - throw new BuildException(ex); - } - - try { - Method setProjectM = proxy.getClass().getMethod( - "setProject", new Class[] {Project.class}); - if (setProjectM != null) { - setProjectM.invoke(proxy, new Object[] {getProject()}); - } - } catch (NoSuchMethodException e) { - // ignore this if the class being used as a task does not have - // a set project method. - } catch (Exception ex) { - log("Error setting project in " + proxy.getClass(), - Project.MSG_ERR); - throw new BuildException(ex); - } - - try { - DispatchUtils.execute(proxy); - } catch (BuildException be) { - throw be; - } catch (Exception ex) { - log("Error in " + proxy.getClass(), Project.MSG_VERBOSE); - throw new BuildException(ex); - } - } - - /** - * Sets the target object to proxy for. - * - * @param o The target object. Must not be <code>null</code>. - */ - public void setProxy(Object o) { - this.proxy = o; - } - - /** - * Returns the target object being proxied. - * - * @return the target proxy object. - */ - public Object getProxy() { - return proxy; - } - -} |