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Ant example source code file (P4HandlerAdapter.java)
The P4HandlerAdapter.java source code/* * 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.perforce; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import org.apache.tools.ant.BuildException; import org.apache.tools.ant.taskdefs.PumpStreamHandler; /** * base class to manage streams around the execution of the Perforce * command line client */ public abstract class P4HandlerAdapter implements P4Handler { // CheckStyle:VisibilityModifier OFF - bc String p4input = ""; private PumpStreamHandler myHandler = null; // CheckStyle:VisibilityModifier ON /** * set any data to be written to P4's stdin * @param p4Input the text to write to P4's stdin */ public void setOutput(String p4Input) { this.p4input = p4Input; } /** * subclasses of P4HandlerAdapter must implement this routine * processing of one line of stdout or of stderr * @param line line of stdout or stderr to process */ public abstract void process(String line); /** * this routine gets called by the execute routine of the Execute class * it connects the PumpStreamHandler to the input/output/error streams of the process. * @throws BuildException if there is a error. * @see org.apache.tools.ant.taskdefs.Execute#execute */ public void start() throws BuildException { if (p4input != null && p4input.length() > 0) { myHandler = new PumpStreamHandler(new P4OutputStream(this), new P4OutputStream(this), new ByteArrayInputStream(p4input.getBytes())); } else { myHandler = new PumpStreamHandler(new P4OutputStream(this), new P4OutputStream(this)); } myHandler.setProcessInputStream(os); myHandler.setProcessErrorStream(es); myHandler.setProcessOutputStream(is); myHandler.start(); } /** * stops the processing of streams * called from P4Base#execP4Command(String command, P4Handler handler) * @see P4Base#execP4Command(String, P4Handler) */ public void stop() { myHandler.stop(); } // CheckStyle:VisibilityModifier OFF - bc OutputStream os; //Input InputStream is; //Output InputStream es; //Error // CheckStyle:VisibilityModifier ON /** * connects the handler to the input stream into Perforce * used indirectly by tasks requiring to send specific standard input * such as p4label, p4change * @param os the stream bringing input to the p4 executable * @throws IOException under unknown circumstances */ public void setProcessInputStream(OutputStream os) throws IOException { this.os = os; } /** * connects the handler to the stderr of the Perforce process * @param is stderr coming from Perforce * @throws IOException under unknown circumstances */ public void setProcessErrorStream(InputStream is) throws IOException { this.es = is; } /** * connects the handler to the stdout of the Perforce process * @param is stdout coming from Perforce * @throws IOException under unknown circumstances */ public void setProcessOutputStream(InputStream is) throws IOException { this.is = is; } } Other Ant examples (source code examples)Here is a short list of links related to this Ant P4HandlerAdapter.java source code file: |
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