/*
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* The contents of this file are subject to the terms of the Common Development and
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* Distribution License (the License). You may not use this file except in compliance with the
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* License.
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*
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* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
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* specific language governing permission and limitations under the License.
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*
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* When distributing Covered Software, include this CDDL Header Notice in each file and include
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* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
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* Header, with the fields enclosed by brackets [] replaced by your own identifying
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* information: "Portions Copyright [year] [name of copyright owner]".
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*
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* Copyright 2015-2016 ForgeRock AS.
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*/
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package com.forgerock.opendj.cli;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URL;
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import java.util.Enumeration;
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import java.util.jar.Attributes;
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import java.util.jar.Manifest;
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/** Class that prints the version of the SDK to System.out. */
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public final class ToolVersionHandler implements VersionHandler {
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/**
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* Returns a {@link VersionHandler} which should be used by OpenDJ SDK tools.
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* <p>
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* The printed version and SCM revision will be the one of the opendj-core module.
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* @return A {@link VersionHandler} which should be used by OpenDJ SDK tools.
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*/
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public static VersionHandler newSdkVersionHandler() {
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return newToolVersionHandler("opendj-core");
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}
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/**
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* Returns a {@link VersionHandler} which should be used to print version and SCM revision of a module.
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* <p>
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* The printed version and SCM revision will be read from the module MANIFEST.MF file.
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* @param moduleName
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* Name of the module which uniquely identify the URL of the MANIFEST.MF file.
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* @return A {@link VersionHandler} which should be used by OpenDJ SDK tools.
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*/
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public static VersionHandler newToolVersionHandler(final String moduleName) {
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return new ToolVersionHandler(moduleName);
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}
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private final String moduleName;
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private ToolVersionHandler(final String moduleName) {
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this.moduleName = moduleName;
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}
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@Override
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public void printVersion() {
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System.out.println(getVersion());
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}
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@Override
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public String toString() {
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return getClass().getSimpleName() + "(" + getVersion() + ")";
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}
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private String getVersion() {
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try {
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final Enumeration<URL> manifests = getClass().getClassLoader().getResources("META-INF/MANIFEST.MF");
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while (manifests.hasMoreElements()) {
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final URL manifestUrl = manifests.nextElement();
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if (manifestUrl.toString().contains(moduleName)) {
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try (InputStream manifestStream = manifestUrl.openStream()) {
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final Attributes attrs = new Manifest(manifestStream).getMainAttributes();
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return attrs.getValue("Bundle-Version") + " (revision " + attrs.getValue("SCM-Revision") + ")";
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}
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}
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}
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return null;
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} catch (IOException e) {
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throw new RuntimeException("IOException while determining opendj tool version", e);
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}
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}
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}
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