/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2012-2013 ForgeRock AS
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* Portions copyright 2014 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.ldap.tools.ToolsMessages.*;
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import static com.forgerock.opendj.cli.Utils.filterExitCode;
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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.CommonArguments;
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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
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// program.
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final LocalizableMessage toolDescription = INFO_LDIFDIFF_TOOL_DESCRIPTION.get();
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final ArgumentParser argParser =
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new ArgumentParser(LDIFDiff.class.getName(), toolDescription, false, true, 2, 2,
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"source target");
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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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new StringArgument("outputFilename", OPTION_SHORT_OUTPUT_LDIF_FILENAME,
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OPTION_LONG_OUTPUT_LDIF_FILENAME, false, false, true,
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INFO_OUTPUT_LDIF_FILE_PLACEHOLDER.get(), "stdout", null,
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INFO_LDIFDIFF_DESCRIPTION_OUTPUT_FILENAME
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.get(INFO_OUTPUT_LDIF_FILE_PLACEHOLDER.get()));
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argParser.addArgument(outputFilename);
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showUsage = CommonArguments.getShowUsage();
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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,
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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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final LocalizableMessage message = ERR_ERROR_PARSING_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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InputStream sourceInputStream = null;
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InputStream targetInputStream = null;
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OutputStream outputStream = null;
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LDIFEntryReader sourceReader = null;
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LDIFEntryReader targetReader = null;
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LDIFChangeRecordWriter outputWriter = 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 (!trailingArguments.get(0).equals("-")) {
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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 (!trailingArguments.get(1).equals("-")) {
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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() && !outputFilename.getValue().equals("-")) {
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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
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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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sourceReader = new LDIFEntryReader(sourceInputStream);
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targetReader = new LDIFEntryReader(targetInputStream);
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outputWriter = new LDIFChangeRecordWriter(outputStream);
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LDIF.copyTo(LDIF.diff(sourceReader, targetReader), outputWriter);
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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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closeIfNotNull(sourceReader, targetReader, outputWriter);
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closeIfNotNull(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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