com.googlecode.t7mp.steps.ResolveTomcatStep.java Source code

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Here is the source code for com.googlecode.t7mp.steps.ResolveTomcatStep.java

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/**
 * Copyright (C) 2010-2012 Joerg Bellmann <joerg.bellmann@googlemail.com>
 *
 * 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 com.googlecode.t7mp.steps;

import java.io.File;
import java.io.FileFilter;
import java.io.IOException;

import java.util.UUID;

import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.StringUtils;

import com.googlecode.t7mp.ApacheTomcatArtifact;
import com.googlecode.t7mp.PluginLog;
import com.googlecode.t7mp.T7Configuration;
import com.googlecode.t7mp.TomcatArtifact;
import com.googlecode.t7mp.TomcatSetupException;
import com.googlecode.t7mp.configuration.PluginArtifactResolver;
import com.googlecode.t7mp.configuration.ResolutionException;
import com.googlecode.t7mp.util.ZipUtil;

/**
 * TODO Comment.
 *
 * @author  Joerg Bellmann
 */
public class ResolveTomcatStep implements Step {

    protected PluginLog logger;
    protected T7Configuration configuration;
    protected PluginArtifactResolver artifactResolver;
    private static final String SEVEN_0 = "7.0.";
    private static final String EIGHT_0 = "8.0.";

    @Override
    public void execute(final Context context) {
        this.configuration = context.getConfiguration();
        this.artifactResolver = context.getArtifactResolver();
        this.logger = context.getLog();
        if (StringUtils.isEmpty(configuration.getTomcatVersion())) {
            throw new TomcatSetupException("Version should not be null or empty.");
        }

        File unpackDirectory = null;
        try {

            // #74
            String tomcatVersion = configuration.getTomcatVersion();
            TomcatArtifact tomcatArtifact = null;
            if (tomcatVersion.startsWith(SEVEN_0)) {
                String minorVersion = tomcatVersion.substring(SEVEN_0.length());
                if (Integer.valueOf(minorVersion).intValue() >= 35) {
                    tomcatArtifact = new ApacheTomcatArtifact();
                } else {
                    tomcatArtifact = new TomcatArtifact();
                }
            } else if (tomcatVersion.startsWith(EIGHT_0)) {
                tomcatArtifact = new ApacheTomcatArtifact();
            } else {
                tomcatArtifact = new TomcatArtifact();
            }

            logger.debug("Resolving " + tomcatArtifact.toString());

            // tomcatArtifact = configuration.getTomcatArtifact();
            tomcatArtifact.setVersion(configuration.getTomcatVersion());

            File resolvedArtifact = artifactResolver.resolveArtifact(tomcatArtifact.getArtifactCoordinates());
            unpackDirectory = getUnpackDirectory();
            ZipUtil.unzip(resolvedArtifact, unpackDirectory);
            copyToTomcatDirectory(unpackDirectory);
        } catch (ResolutionException e) {
            logger.error(e.getMessage(), e);
            throw new TomcatSetupException(e.getMessage(), e);
        } catch (IOException e) {
            logger.error(e.getMessage(), e);
            throw new TomcatSetupException(e.getMessage(), e);
        } finally {
            if (unpackDirectory != null) {
                try {
                    FileUtils.deleteDirectory(unpackDirectory);
                } catch (IOException e) {
                    logger.error("Could not delete tomcat upack directory : " + unpackDirectory.getAbsolutePath());
                    logger.error(e.getMessage(), e);
                }
            }
        }
    }

    private void copyToTomcatDirectory(final File unpackDirectory) throws IOException {
        File[] files = unpackDirectory.listFiles(new FileFilter() {
            @Override
            public boolean accept(final File file) {
                return file.isDirectory();
            }
        });

        // should only be one
        FileUtils.copyDirectory(files[0], this.configuration.getCatalinaBase());
    }

    protected File getUnpackDirectory() {
        File tempDir = new File(System.getProperty("java.io.tmpdir"));
        File upackDirectory = new File(tempDir, UUID.randomUUID().toString());
        upackDirectory.mkdirs();
        return upackDirectory;
    }

}