io.werval.maven.MavenDevShellSPI.java Source code

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Here is the source code for io.werval.maven.MavenDevShellSPI.java

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/*
 * Copyright (c) 2013-2014 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 io.werval.maven;

import io.werval.spi.dev.DevShellRebuildException;
import io.werval.spi.dev.DevShellSPI.SourceWatcher;
import io.werval.spi.dev.DevShellSPIAdapter;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.net.URL;
import java.util.Set;
import org.apache.commons.exec.CommandLine;
import org.apache.commons.exec.DefaultExecutor;
import org.apache.commons.exec.PumpStreamHandler;
import org.apache.maven.MavenExecutionException;

/**
 * Maven DevShellSPI implementation.
 */
public class MavenDevShellSPI extends DevShellSPIAdapter {
    private final File pom;
    private final CommandLine cmdLine;

    public MavenDevShellSPI(URL[] applicationSources, URL[] applicationClassPath, URL[] runtimeClassPath,
            Set<File> sources, SourceWatcher watcher, File rootDir, String rebuildPhase) {
        super(applicationSources, applicationClassPath, runtimeClassPath, sources, watcher, false);
        pom = new File(rootDir, "pom.xml");
        cmdLine = new CommandLine("mvn");
        cmdLine.addArgument("-f");
        cmdLine.addArgument(pom.getAbsolutePath());
        cmdLine.addArgument(rebuildPhase);
    }

    @Override
    protected void doRebuild() throws DevShellRebuildException {
        System.out.println("Reload!");
        DefaultExecutor executor = new DefaultExecutor();
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        executor.setStreamHandler(new PumpStreamHandler(output));
        try {
            int exitValue = executor.execute(cmdLine);
            if (exitValue != 0) {
                throw new DevShellRebuildException(
                        new MavenExecutionException("Maven exited with a non-zero status: " + exitValue, pom));
            }
        } catch (Exception ex) {
            throw new DevShellRebuildException(ex, output.toString());
        }
    }
}