| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.olingo.client.core.serialization; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.InputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.UnsupportedEncodingException; |
| import java.net.URI; |
| import java.util.Collection; |
| import java.util.Collections; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.olingo.client.api.ODataClient; |
| import org.apache.olingo.client.api.domain.ClientEntity; |
| import org.apache.olingo.client.api.domain.ClientLink; |
| import org.apache.olingo.client.api.domain.ClientProperty; |
| import org.apache.olingo.client.api.serialization.ODataWriter; |
| import org.apache.olingo.commons.api.Constants; |
| import org.apache.olingo.commons.api.data.ResWrap; |
| import org.apache.olingo.commons.api.format.ContentType; |
| import org.apache.olingo.client.api.serialization.ODataSerializerException; |
| |
| public class ODataWriterImpl implements ODataWriter { |
| |
| protected final ODataClient client; |
| |
| public ODataWriterImpl(final ODataClient client) { |
| this.client = client; |
| } |
| |
| @Override |
| public InputStream writeEntities(final Collection<ClientEntity> entities, final ContentType contentType) |
| throws ODataSerializerException { |
| ByteArrayOutputStream output = new ByteArrayOutputStream(); |
| OutputStreamWriter writer; |
| try { |
| writer = new OutputStreamWriter(output, Constants.UTF8); |
| } catch (final UnsupportedEncodingException e) { |
| writer = null; |
| } |
| try { |
| for (ClientEntity entity : entities) { |
| client.getSerializer(contentType).write(writer, client.getBinder().getEntity(entity)); |
| } |
| |
| return new ByteArrayInputStream(output.toByteArray()); |
| } finally { |
| IOUtils.closeQuietly(writer); |
| } |
| } |
| |
| @Override |
| public InputStream writeEntity(final ClientEntity entity, final ContentType contentType) |
| throws ODataSerializerException { |
| return writeEntities(Collections.<ClientEntity>singleton(entity), contentType); |
| } |
| |
| @Override |
| public InputStream writeProperty(final ClientProperty property, final ContentType contentType) |
| throws ODataSerializerException { |
| final ByteArrayOutputStream output = new ByteArrayOutputStream(); |
| OutputStreamWriter writer; |
| try { |
| writer = new OutputStreamWriter(output, Constants.UTF8); |
| } catch (final UnsupportedEncodingException e) { |
| writer = null; |
| } |
| try { |
| client.getSerializer(contentType).write(writer, client.getBinder().getProperty(property)); |
| |
| return new ByteArrayInputStream(output.toByteArray()); |
| } finally { |
| IOUtils.closeQuietly(writer); |
| } |
| } |
| |
| @Override |
| public InputStream writeLink(final ClientLink link, final ContentType contentType) throws ODataSerializerException { |
| final ByteArrayOutputStream output = new ByteArrayOutputStream(); |
| OutputStreamWriter writer; |
| try { |
| writer = new OutputStreamWriter(output, Constants.UTF8); |
| } catch (final UnsupportedEncodingException e) { |
| writer = null; |
| } |
| try { |
| client.getSerializer(contentType).write(writer, client.getBinder().getLink(link)); |
| |
| return new ByteArrayInputStream(output.toByteArray()); |
| } finally { |
| IOUtils.closeQuietly(writer); |
| } |
| } |
| |
| @Override |
| public InputStream writeReference(ResWrap<URI> reference, ContentType contenType) throws ODataSerializerException { |
| final ByteArrayOutputStream output = new ByteArrayOutputStream(); |
| OutputStreamWriter writer; |
| |
| try { |
| writer = new OutputStreamWriter(output, Constants.UTF8); |
| } catch (final UnsupportedEncodingException e) { |
| writer = null; |
| } |
| |
| try { |
| client.getSerializer(contenType).write(writer, reference); |
| |
| return new ByteArrayInputStream(output.toByteArray()); |
| } finally { |
| IOUtils.closeQuietly(writer); |
| } |
| } |
| } |