/*
* Copyright 2013 Brian Thomas Matthews
*
* 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.btmatthews.maven.plugins.ldap.mojo;
import com.btmatthews.maven.plugins.ldap.FormatHandler;
import com.btmatthews.maven.plugins.ldap.dsml.DSMLFormatHandler;
import com.btmatthews.maven.plugins.ldap.ldif.LDIFFormatHandler;
import com.unboundid.ldap.sdk.LDAPConnection;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import java.io.IOException;
import java.io.InputStream;
/**
* Implement the goal that loads a LDIF or DSML file into the LDAP directory server.
*
* @author <a href="mailto:brian.matthews@btmatthews.com">Brian Matthews</a>
* @since 1.2.0
*/
@Mojo(name = "load")
public final class LoadMojo extends AbstractLDAPMojo {
/**
* Handler used to load LDAP directory entries from DSML files.
*/
private final FormatHandler dsmlFormatHandler = new DSMLFormatHandler();
/**
* Handler used to load LDAP directory entries from LDIF files.
*/
private final FormatHandler ldifFormatHandler = new LDIFFormatHandler();
/**
* The LDIF and DSML files to be processed.
*/
@SuppressWarnings("MismatchedReadAndWriteOfArray")
@Parameter(required = true)
private Source[] sources;
/**
* Indicates if the plugin should continue if there is an error. The default
* is to halt on error.
*/
@Parameter(defaultValue = "false")
private boolean continueOnError;
/**
* Execute the plugin goal iterating over the list of source files and loading the LDAP directory entries from
* each file using the appropriate handler.
*
* @throws MojoExecutionException If there was an error executing the plugin goal.
*/
public void execute() throws MojoExecutionException {
final LDAPConnection connection = connect();
try {
for (final Source source : sources) {
try {
getLog().info("Processing input source: " + source);
final FormatHandler handler = getFormatHandler(source);
if (handler == null) {
getLog().warn("No handler for input source: " + source);
} else {
final InputStream inputStream = source.open();
if (inputStream == null) {
if (!this.continueOnError) {
throw new MojoExecutionException("Cannot open source for reading: " + source);
} else {
getLog().warn("Skipping source that could not be opened for reading: " + source);
}
} else {
try {
handler.load(connection, source.open(), continueOnError, this);
} finally {
inputStream.close();
}
}
}
} catch (final IOException e) {
if (!this.continueOnError) {
throw new MojoExecutionException("Error closing input source: " + source, e);
} else {
this.getLog().warn("Ignoring error closing input source: " + source, e);
}
}
}
} finally {
connection.close();
}
}
/**
* Determine which format handler to use for a source file. If the source file is DSML then {@link #dsmlFormatHandler}
* will be used and if it is LDIF then {@link #ldifFormatHandler}.
*
* @param source Describes the source file.
* @return The appropriate format handler or {@code null} if the source is not supported.
*/
private FormatHandler getFormatHandler(final Source source) {
if (source instanceof Dsml) {
return dsmlFormatHandler;
} else if (source instanceof Ldif) {
return ldifFormatHandler;
} else {
return null;
}
}
}