/*
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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 2012-2016 ForgeRock AS.
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* Portions Copyright 2014-2015 ForgeRock AS.
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*/
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package com.forgerock.opendj.ldap.tools;
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import static com.forgerock.opendj.cli.ArgumentConstants.OPTION_LONG_OUTPUT_LDIF_FILENAME;
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import static com.forgerock.opendj.cli.ArgumentConstants.OPTION_SHORT_OUTPUT_LDIF_FILENAME;
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import static com.forgerock.opendj.cli.ToolVersionHandler.newSdkVersionHandler;
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import static com.forgerock.opendj.ldap.tools.ToolsMessages.*;
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import static com.forgerock.opendj.cli.Utils.filterExitCode;
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import static com.forgerock.opendj.cli.CommonArguments.*;
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import static org.forgerock.util.Utils.closeSilently;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.util.List;
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import org.forgerock.i18n.LocalizableException;
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import org.forgerock.i18n.LocalizableMessage;
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import org.forgerock.opendj.ldap.ResultCode;
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import org.forgerock.opendj.ldif.LDIF;
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import org.forgerock.opendj.ldif.LDIFChangeRecordWriter;
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import org.forgerock.opendj.ldif.LDIFEntryReader;
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import com.forgerock.opendj.cli.ArgumentException;
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import com.forgerock.opendj.cli.ArgumentParser;
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import com.forgerock.opendj.cli.BooleanArgument;
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import com.forgerock.opendj.cli.ConsoleApplication;
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import com.forgerock.opendj.cli.StringArgument;
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/**
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* This utility can be used to compare two LDIF files and report the differences
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* in LDIF format.
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*/
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public final class LDIFDiff extends ConsoleApplication {
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/**
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* The main method for LDIFDiff tool.
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*
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* @param args
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* The command-line arguments provided to this program.
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*/
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public static void main(final String[] args) {
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final int retCode = new LDIFDiff().run(args);
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System.exit(filterExitCode(retCode));
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}
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private LDIFDiff() {
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// Nothing to do.
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}
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private int run(final String[] args) {
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// Create the command-line argument parser for use with this program.
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final LocalizableMessage toolDescription = INFO_LDIFDIFF_TOOL_DESCRIPTION.get();
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final ArgumentParser argParser = new ArgumentParser(
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LDIFDiff.class.getName(), toolDescription, false, true, 2, 2, "source target");
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argParser.setVersionHandler(newSdkVersionHandler());
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argParser.setShortToolDescription(REF_SHORT_DESC_LDIFDIFF.get());
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final BooleanArgument showUsage;
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final StringArgument outputFilename;
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try {
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outputFilename =
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StringArgument.builder(OPTION_LONG_OUTPUT_LDIF_FILENAME)
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.shortIdentifier(OPTION_SHORT_OUTPUT_LDIF_FILENAME)
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.description(INFO_LDIFDIFF_DESCRIPTION_OUTPUT_FILENAME.get(
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INFO_OUTPUT_LDIF_FILE_PLACEHOLDER.get()))
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.defaultValue("stdout")
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.valuePlaceholder(INFO_OUTPUT_LDIF_FILE_PLACEHOLDER.get())
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.buildAndAddToParser(argParser);
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showUsage = showUsageArgument();
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argParser.addArgument(showUsage);
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argParser.setUsageArgument(showUsage, getOutputStream());
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} catch (final ArgumentException ae) {
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final LocalizableMessage message = ERR_CANNOT_INITIALIZE_ARGS.get(ae.getMessage());
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errPrintln(message);
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return ResultCode.CLIENT_SIDE_PARAM_ERROR.intValue();
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}
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// Parse the command-line arguments provided to this program.
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try {
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argParser.parseArguments(args);
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/* If we should just display usage or version information, then print it and exit. */
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if (argParser.usageOrVersionDisplayed()) {
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return ResultCode.SUCCESS.intValue();
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}
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} catch (final ArgumentException ae) {
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argParser.displayMessageAndUsageReference(getErrStream(), ERR_ERROR_PARSING_ARGS.get(ae.getMessage()));
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return ResultCode.CLIENT_SIDE_PARAM_ERROR.intValue();
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}
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InputStream sourceInputStream = null;
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InputStream targetInputStream = null;
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OutputStream outputStream = null;
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try {
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// First source file.
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final List<String> trailingArguments = argParser.getTrailingArguments();
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if (!"-".equals(trailingArguments.get(0))) {
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try {
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sourceInputStream = new FileInputStream(trailingArguments.get(0));
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} catch (final FileNotFoundException e) {
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final LocalizableMessage message =
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ERR_LDIF_FILE_CANNOT_OPEN_FOR_READ.get(trailingArguments.get(0), e
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.getLocalizedMessage());
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errPrintln(message);
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return ResultCode.CLIENT_SIDE_PARAM_ERROR.intValue();
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}
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}
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// Patch file.
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if (!"-".equals(trailingArguments.get(1))) {
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try {
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targetInputStream = new FileInputStream(trailingArguments.get(1));
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} catch (final FileNotFoundException e) {
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final LocalizableMessage message =
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ERR_LDIF_FILE_CANNOT_OPEN_FOR_READ.get(trailingArguments.get(1), e
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.getLocalizedMessage());
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errPrintln(message);
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return ResultCode.CLIENT_SIDE_PARAM_ERROR.intValue();
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}
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}
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// Output file.
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if (outputFilename.isPresent() && !"-".equals(outputFilename.getValue())) {
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try {
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outputStream = new FileOutputStream(outputFilename.getValue());
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} catch (final FileNotFoundException e) {
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final LocalizableMessage message =
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ERR_LDIF_FILE_CANNOT_OPEN_FOR_WRITE.get(outputFilename.getValue(), e
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.getLocalizedMessage());
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errPrintln(message);
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return ResultCode.CLIENT_SIDE_PARAM_ERROR.intValue();
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}
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}
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// Default to stdin/stdout for all streams if not specified.
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if (sourceInputStream == null) {
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// Command line parameter was "-".
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sourceInputStream = System.in;
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}
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if (targetInputStream == null) {
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targetInputStream = System.in;
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}
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if (outputStream == null) {
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outputStream = System.out;
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}
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/* Check that we are not attempting to read both the source and target from stdin. */
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if (sourceInputStream == targetInputStream) {
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final LocalizableMessage message = ERR_LDIFDIFF_MULTIPLE_USES_OF_STDIN.get();
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errPrintln(message);
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return ResultCode.CLIENT_SIDE_PARAM_ERROR.intValue();
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}
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// Perform the diff.
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try (LDIFEntryReader sourceReader = new LDIFEntryReader(sourceInputStream);
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LDIFEntryReader targetReader = new LDIFEntryReader(targetInputStream);
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LDIFChangeRecordWriter outputWriter = new LDIFChangeRecordWriter(outputStream)) {
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LDIF.copyTo(LDIF.diff(sourceReader, targetReader), outputWriter);
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}
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} catch (final IOException e) {
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if (e instanceof LocalizableException) {
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errPrintln(ERR_LDIFDIFF_DIFF_FAILED.get(((LocalizableException) e).getMessageObject()));
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} else {
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errPrintln(ERR_LDIFDIFF_DIFF_FAILED.get(e.getLocalizedMessage()));
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}
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return ResultCode.CLIENT_SIDE_LOCAL_ERROR.intValue();
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} finally {
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closeSilently(sourceInputStream, targetInputStream, outputStream);
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}
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return ResultCode.SUCCESS.intValue();
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}
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}
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