/*
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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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*/
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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.LDAPToolException.newToolParamException;
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import static com.forgerock.opendj.ldap.tools.ToolsMessages.*;
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import static com.forgerock.opendj.cli.CommonArguments.*;
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import static com.forgerock.opendj.ldap.tools.Utils.computeWrapColumn;
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import static com.forgerock.opendj.ldap.tools.Utils.getLDIFToolInputStream;
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import static com.forgerock.opendj.ldap.tools.Utils.getLDIFToolOutputStream;
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import static com.forgerock.opendj.ldap.tools.Utils.parseArguments;
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import static com.forgerock.opendj.ldap.tools.Utils.runTool;
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import static com.forgerock.opendj.ldap.tools.Utils.runToolAndExit;
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import static org.forgerock.util.Utils.closeSilently;
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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.io.PrintStream;
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import java.util.List;
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import com.forgerock.opendj.cli.IntegerArgument;
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import org.forgerock.i18n.LocalizableException;
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import org.forgerock.opendj.ldap.ResultCode;
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import org.forgerock.opendj.ldif.ChangeRecordReader;
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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.StringArgument;
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import org.forgerock.util.annotations.VisibleForTesting;
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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 ToolConsoleApplication {
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static final int NO_DIFFERENCES_FOUND = 0;
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static final int DIFFERENCES_FOUND = 1;
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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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runToolAndExit(new LDIFDiff(System.out, System.err), args);
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}
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/**
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* This method should be used to run this tool programmatically.
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* Output and errors will be printed on provided {@link PrintStream}.
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*
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* @param out
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* The {@link PrintStream} to use to write tool output.
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* @param err
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* The {@link PrintStream} to use to write tool errors.
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* @param args
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* The arguments to use with this tool.
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* @return The code returned by the tool
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*/
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public static int run(final PrintStream out, final PrintStream err, final String... args) {
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return runTool(new LDIFDiff(out, err), args);
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}
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@VisibleForTesting
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LDIFDiff(final PrintStream out, final PrintStream err) {
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super(out, err);
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}
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@Override
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public boolean isInteractive() {
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return false;
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}
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@Override
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int run(final String... args) throws LDAPToolException {
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final ArgumentParser argParser = LDAPToolArgumentParser.builder(LDIFDiff.class.getName())
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.toolDescription(INFO_LDIFDIFF_TOOL_DESCRIPTION.get())
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.trailingArguments(2, "source target")
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.build();
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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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final IntegerArgument wrapColumn;
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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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wrapColumn = wrapColumnArgument();
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argParser.addArgument(wrapColumn);
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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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throw newToolParamException(ae, ERR_CANNOT_INITIALIZE_ARGS.get(ae.getMessage()));
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}
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parseArguments(argParser, getErrorStream(), args);
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if (argParser.usageOrVersionDisplayed()) {
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return ResultCode.SUCCESS.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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final List<String> trailingArguments = argParser.getTrailingArguments();
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sourceInputStream = getLDIFToolInputStream(this, trailingArguments.get(0));
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targetInputStream = getLDIFToolInputStream(this, trailingArguments.get(1));
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outputStream = getLDIFToolOutputStream(this, outputFilename);
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if (System.in == sourceInputStream && System.in == targetInputStream) {
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throw newToolParamException(ERR_LDIFDIFF_MULTIPLE_USES_OF_STDIN.get());
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}
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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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outputWriter.setWrapColumn(computeWrapColumn(wrapColumn));
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final ChangeRecordReader changes = LDIF.diff(sourceReader, targetReader);
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LDIF.copyTo(changes, outputWriter);
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if (outputWriter.containsChanges()) {
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return DIFFERENCES_FOUND;
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} else {
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outputWriter.writeComment(INFO_LDIFDIFF_NO_DIFFERENCES.get().toString());
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return NO_DIFFERENCES_FOUND;
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}
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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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} catch (final ArgumentException ae) {
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throw newToolParamException(ae, ae.getMessageObject());
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} finally {
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closeSilently(sourceInputStream, targetInputStream, outputStream);
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}
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}
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}
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