/*
* Copyright 2012 the original author or authors.
*
* Licensed 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.gradle.integtests.fixtures.executer;
import org.apache.commons.io.output.CloseShieldOutputStream;
import org.apache.commons.io.output.TeeOutputStream;
import org.gradle.api.Action;
import org.gradle.internal.Factory;
import org.gradle.internal.UncheckedException;
import org.gradle.process.ExecResult;
import org.gradle.process.internal.AbstractExecHandleBuilder;
import org.gradle.process.internal.ExecHandle;
import org.gradle.process.internal.ExecHandleState;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
class ForkingGradleHandle extends OutputScrapingGradleHandle {
final private Factory<? extends AbstractExecHandleBuilder> execHandleFactory;
final private ByteArrayOutputStream standardOutput = new ByteArrayOutputStream();
final private ByteArrayOutputStream errorOutput = new ByteArrayOutputStream();
private final Action<ExecutionResult> resultAssertion;
private ExecHandle execHandle;
private final String outputEncoding;
public ForkingGradleHandle(Action<ExecutionResult> resultAssertion, String outputEncoding, Factory<? extends AbstractExecHandleBuilder> execHandleFactory) {
this.resultAssertion = resultAssertion;
this.execHandleFactory = execHandleFactory;
this.outputEncoding = outputEncoding;
}
public String getStandardOutput() {
try {
return standardOutput.toString(outputEncoding);
} catch (UnsupportedEncodingException e) {
throw UncheckedException.throwAsUncheckedException(e);
}
}
public String getErrorOutput() {
try {
return errorOutput.toString(outputEncoding);
} catch (UnsupportedEncodingException e) {
throw UncheckedException.throwAsUncheckedException(e);
}
}
public GradleHandle start() {
if (execHandle != null) {
throw new IllegalStateException("you have already called start() on this handle");
}
AbstractExecHandleBuilder execBuilder = execHandleFactory.create();
execBuilder.setStandardOutput(new CloseShieldOutputStream(new TeeOutputStream(System.out, standardOutput)));
execBuilder.setErrorOutput(new CloseShieldOutputStream(new TeeOutputStream(System.err, errorOutput)));
execHandle = execBuilder.build();
execHandle.start();
return this;
}
public GradleHandle abort() {
getExecHandle().abort();
return this;
}
public boolean isRunning() {
return execHandle != null && execHandle.getState() == ExecHandleState.STARTED;
}
protected ExecHandle getExecHandle() {
if (execHandle == null) {
throw new IllegalStateException("you must call start() before calling this method");
}
return execHandle;
}
public ExecutionResult waitForFinish() {
return waitForStop(false);
}
public ExecutionFailure waitForFailure() {
return (ExecutionFailure) waitForStop(true);
}
protected ExecutionResult waitForStop(boolean expectFailure) {
ExecHandle execHandle = getExecHandle();
ExecResult execResult = execHandle.waitForFinish();
execResult.rethrowFailure(); // nop if all ok
String output = getStandardOutput();
String error = getErrorOutput();
boolean didFail = execResult.getExitValue() != 0;
if (didFail != expectFailure) {
String message = String.format("Gradle execution %s in %s with: %s %s%nOutput:%n%s%n-----%nError:%n%s%n-----%n",
expectFailure ? "did not fail" : "failed", execHandle.getDirectory(), execHandle.getCommand(), execHandle.getArguments(), output, error);
throw new UnexpectedBuildFailure(message);
}
ExecutionResult executionResult = expectFailure ? toExecutionFailure(output, error) : toExecutionResult(output, error);
resultAssertion.execute(executionResult);
return executionResult;
}
}