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DefaultWorkerProcessBuilder.java
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DefaultWorkerProcessBuilder.java
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/*
* Copyright 2016 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.process.internal.worker;
import org.gradle.api.Action;
import org.gradle.api.logging.LogLevel;
import org.gradle.internal.id.IdGenerator;
import org.gradle.internal.jvm.JpmsConfiguration;
import org.gradle.internal.jvm.Jvm;
import org.gradle.internal.jvm.inspection.JvmVersionDetector;
import org.gradle.internal.logging.events.OutputEventListener;
import org.gradle.internal.remote.Address;
import org.gradle.internal.remote.ConnectionAcceptor;
import org.gradle.internal.remote.MessagingServer;
import org.gradle.internal.remote.ObjectConnection;
import org.gradle.process.ExecResult;
import org.gradle.process.internal.ExecHandle;
import org.gradle.process.internal.JavaExecHandleBuilder;
import org.gradle.process.internal.JavaExecHandleFactory;
import org.gradle.process.internal.health.memory.JvmMemoryStatus;
import org.gradle.process.internal.health.memory.MemoryAmount;
import org.gradle.process.internal.health.memory.MemoryManager;
import org.gradle.process.internal.worker.child.ApplicationClassesInSystemClassLoaderWorkerImplementationFactory;
import org.gradle.process.internal.worker.child.WorkerJvmMemoryInfoProtocol;
import org.gradle.process.internal.worker.child.WorkerLoggingProtocol;
import org.gradle.util.internal.GUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.net.URL;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
public class DefaultWorkerProcessBuilder implements WorkerProcessBuilder {
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultWorkerProcessBuilder.class);
private final MessagingServer server;
private final IdGenerator<Long> idGenerator;
private final ApplicationClassesInSystemClassLoaderWorkerImplementationFactory workerImplementationFactory;
private final OutputEventListener outputEventListener;
private final JavaExecHandleBuilder javaCommand;
private final Set<String> packages = new HashSet<>();
private final Set<File> applicationClasspath = new LinkedHashSet<>();
private final Set<File> applicationModulePath = new LinkedHashSet<>();
private final MemoryManager memoryManager;
private final JvmVersionDetector jvmVersionDetector;
private Action<? super WorkerProcessContext> action;
private LogLevel logLevel = LogLevel.LIFECYCLE;
private String baseName = "Gradle Worker";
private int connectTimeoutSeconds;
private List<URL> implementationClassPath;
private List<URL> implementationModulePath;
private boolean shouldPublishJvmMemoryInfo;
private boolean useLegacyAddOpens = true;
DefaultWorkerProcessBuilder(JavaExecHandleFactory execHandleFactory, MessagingServer server, IdGenerator<Long> idGenerator, ApplicationClassesInSystemClassLoaderWorkerImplementationFactory workerImplementationFactory, OutputEventListener outputEventListener, MemoryManager memoryManager, JvmVersionDetector jvmVersionDetector) {
this.javaCommand = execHandleFactory.newJavaExec();
this.javaCommand.setExecutable(Jvm.current().getJavaExecutable());
this.server = server;
this.idGenerator = idGenerator;
this.workerImplementationFactory = workerImplementationFactory;
this.outputEventListener = outputEventListener;
this.memoryManager = memoryManager;
this.jvmVersionDetector = jvmVersionDetector;
}
public int getConnectTimeoutSeconds() {
return connectTimeoutSeconds;
}
public void setConnectTimeoutSeconds(int connectTimeoutSeconds) {
this.connectTimeoutSeconds = connectTimeoutSeconds;
}
@Override
public WorkerProcessBuilder setBaseName(String baseName) {
this.baseName = baseName;
return this;
}
@Override
public String getBaseName() {
return baseName;
}
@Override
public WorkerProcessBuilder applicationClasspath(Iterable<File> files) {
for (File file : files) {
if (file == null) {
throw new IllegalArgumentException("Illegal null value provided in this collection: " + files);
}
if (isEntryValid(file)) {
applicationClasspath.add(file);
}
}
return this;
}
private boolean isEntryValid(File file) {
return file.exists() || ("*".equals(file.getName()) && file.getParentFile() != null && file.getParentFile().exists());
}
@Override
public Set<File> getApplicationClasspath() {
return applicationClasspath;
}
@Override
public WorkerProcessBuilder applicationModulePath(Iterable<File> files) {
GUtil.addToCollection(applicationModulePath, files);
return this;
}
@Override
public Set<File> getApplicationModulePath() {
return applicationModulePath;
}
@Override
public WorkerProcessBuilder sharedPackages(String... packages) {
sharedPackages(Arrays.asList(packages));
return this;
}
@Override
public WorkerProcessBuilder sharedPackages(Iterable<String> packages) {
GUtil.addToCollection(this.packages, packages);
return this;
}
@Override
public Set<String> getSharedPackages() {
return packages;
}
public WorkerProcessBuilder worker(Action<? super WorkerProcessContext> action) {
this.action = action;
return this;
}
@Override
public Action<? super WorkerProcessContext> getWorker() {
return action;
}
@Override
public JavaExecHandleBuilder getJavaCommand() {
return javaCommand;
}
@Override
public LogLevel getLogLevel() {
return logLevel;
}
@Override
public WorkerProcessBuilder setLogLevel(LogLevel logLevel) {
this.logLevel = logLevel;
return this;
}
@Override
public void setImplementationClasspath(List<URL> implementationClassPath) {
this.implementationClassPath = implementationClassPath;
}
@Override
public void setImplementationModulePath(List<URL> implementationModulePath) {
this.implementationModulePath = implementationModulePath;
}
@Override
public void enableJvmMemoryInfoPublishing(boolean shouldPublish) {
this.shouldPublishJvmMemoryInfo = shouldPublish;
}
@Deprecated
@Override
public WorkerProcessBuilder setUseLegacyAddOpens(boolean useLegacyAddOpens) {
this.useLegacyAddOpens = useLegacyAddOpens;
return this;
}
@Override
public WorkerProcess build() {
final WorkerJvmMemoryStatus memoryStatus = shouldPublishJvmMemoryInfo ? new WorkerJvmMemoryStatus() : null;
final DefaultWorkerProcess workerProcess = new DefaultWorkerProcess(connectTimeoutSeconds, TimeUnit.SECONDS, memoryStatus);
ConnectionAcceptor acceptor = server.accept(new Action<ObjectConnection>() {
@Override
public void execute(final ObjectConnection connection) {
workerProcess.onConnect(connection, new Runnable() {
@Override
public void run() {
DefaultWorkerLoggingProtocol defaultWorkerLoggingProtocol = new DefaultWorkerLoggingProtocol(outputEventListener);
connection.useParameterSerializers(WorkerLoggingSerializer.create());
connection.addIncoming(WorkerLoggingProtocol.class, defaultWorkerLoggingProtocol);
if (shouldPublishJvmMemoryInfo) {
connection.useParameterSerializers(WorkerJvmMemoryInfoSerializer.create());
connection.addIncoming(WorkerJvmMemoryInfoProtocol.class, memoryStatus);
}
}
});
}
});
workerProcess.startAccepting(acceptor);
Address localAddress = acceptor.getAddress();
// Build configuration for GradleWorkerMain
long id = idGenerator.generateId();
String displayName = getBaseName() + " " + id;
LOGGER.debug("Creating {}", displayName);
LOGGER.debug("Using application classpath {}", applicationClasspath);
LOGGER.debug("Using application module path {}", applicationModulePath);
LOGGER.debug("Using implementation classpath {}", implementationClassPath);
LOGGER.debug("Using implementation module path {}", implementationModulePath);
JavaExecHandleBuilder javaCommand = getJavaCommand();
javaCommand.setDisplayName(displayName);
boolean java9Compatible = jvmVersionDetector.getJavaVersion(javaCommand.getExecutable()).isJava9Compatible();
if (java9Compatible && useLegacyAddOpens) {
javaCommand.jvmArgs(JpmsConfiguration.GRADLE_WORKER_JPMS_ARGS);
}
workerImplementationFactory.prepareJavaCommand(id, displayName, this, implementationClassPath, implementationModulePath, localAddress, javaCommand, shouldPublishJvmMemoryInfo, java9Compatible);
javaCommand.args("'" + displayName + "'");
if (javaCommand.getMaxHeapSize() == null) {
javaCommand.setMaxHeapSize("512m");
}
ExecHandle execHandle = javaCommand.build();
workerProcess.setExecHandle(execHandle);
return new MemoryRequestingWorkerProcess(workerProcess, memoryManager, MemoryAmount.parseNotation(javaCommand.getMinHeapSize()));
}
private static class MemoryRequestingWorkerProcess implements WorkerProcess {
private final WorkerProcess delegate;
private final MemoryManager memoryResourceManager;
private final long memoryAmount;
private MemoryRequestingWorkerProcess(WorkerProcess delegate, MemoryManager memoryResourceManager, long memoryAmount) {
this.delegate = delegate;
this.memoryResourceManager = memoryResourceManager;
this.memoryAmount = memoryAmount;
}
@Override
public WorkerProcess start() {
memoryResourceManager.requestFreeMemory(memoryAmount);
return delegate.start();
}
@Override
public ObjectConnection getConnection() {
return delegate.getConnection();
}
@Override
public ExecResult waitForStop() {
return delegate.waitForStop();
}
@Override
public JvmMemoryStatus getJvmMemoryStatus() {
return delegate.getJvmMemoryStatus();
}
@Override
public void stopNow() {
delegate.stopNow();
}
}
private static class WorkerJvmMemoryStatus implements JvmMemoryStatus, WorkerJvmMemoryInfoProtocol {
private JvmMemoryStatus snapshot;
public WorkerJvmMemoryStatus() {
this.snapshot = new JvmMemoryStatus() {
@Override
public long getMaxMemory() {
throw new IllegalStateException("JVM memory status has not been reported yet.");
}
@Override
public long getCommittedMemory() {
throw new IllegalStateException("JVM memory status has not been reported yet.");
}
};
}
@Override
public void sendJvmMemoryStatus(JvmMemoryStatus jvmMemoryStatus) {
this.snapshot = jvmMemoryStatus;
}
@Override
public long getMaxMemory() {
return snapshot.getMaxMemory();
}
@Override
public long getCommittedMemory() {
return snapshot.getCommittedMemory();
}
}
}