/*
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying 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 2009 Sun Microsystems, Inc.
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*/
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package org.opends.sdk.ldif;
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import java.io.InterruptedIOException;
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import org.opends.sdk.Connection;
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import org.opends.sdk.Entry;
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import org.opends.sdk.ErrorResultException;
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import org.opends.sdk.ErrorResultIOException;
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import com.sun.opends.sdk.util.Validator;
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/**
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* A {@code ConnectionEntryWriter} is a bridge from {@code Connection}s to
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* {@code EntryWriter}s. A connection entry writer writes entries by sending Add
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* requests to an underlying connection.
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* <p>
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* All Add requests are performed synchronously, blocking until an Add result is
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* received. If an Add result indicates that an Add request has failed for some
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* reason then the error result is propagated to the caller using an {@code
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* ErrorResultIOException}.
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* <p>
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* <b>Note:</b> comments are not supported by connection change record writers.
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* Attempts to write comments will be ignored.
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*/
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public final class ConnectionEntryWriter implements EntryWriter
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{
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private final Connection connection;
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/**
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* Creates a new connection entry writer whose destination is the provided
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* connection.
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*
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* @param connection
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* The connection to use.
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* @throws NullPointerException
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* If {@code connection} was {@code null}.
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*/
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public ConnectionEntryWriter(final Connection connection)
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throws NullPointerException
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{
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Validator.ensureNotNull(connection);
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this.connection = connection;
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}
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/**
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* Closes this connection entry writer, including the underlying connection.
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* Closing a previously closed entry writer has no effect.
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*/
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public void close()
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{
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connection.close();
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}
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/**
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* Connection entry writers do not require flushing, so this method has no
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* effect.
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*/
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public void flush()
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{
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// Do nothing.
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}
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/**
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* Connection entry writers do not support comments, so the provided comment
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* will be ignored.
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*
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* @param comment
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* The {@code CharSequence} to be written as a comment.
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* @return A reference to this connection entry writer.
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* @throws NullPointerException
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* If {@code comment} was {@code null}.
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*/
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public ConnectionEntryWriter writeComment(final CharSequence comment)
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throws NullPointerException
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{
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Validator.ensureNotNull(comment);
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// Do nothing.
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return this;
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}
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/**
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* Writes an entry to the underlying connection using an Add request, blocking
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* until the request completes.
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*
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* @param entry
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* The {@code Entry} to be written.
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* @return A reference to this connection entry writer.
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* @throws ErrorResultIOException
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* If the result code indicates that the request failed for some
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* reason.
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* @throws InterruptedIOException
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* If the current thread was interrupted while waiting.
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* @throws NullPointerException
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* If {@code entry} was {@code null}.
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*/
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public ConnectionEntryWriter writeEntry(final Entry entry)
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throws ErrorResultIOException, InterruptedIOException,
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NullPointerException
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{
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Validator.ensureNotNull(entry);
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try
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{
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connection.add(entry);
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}
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catch (final ErrorResultException e)
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{
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throw new ErrorResultIOException(e);
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}
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catch (final InterruptedException e)
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{
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throw new InterruptedIOException(e.getMessage());
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}
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return this;
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}
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}
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