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Diffstat (limited to 'sandbox/sca-cloud-tutorial/cloud-google/src/main/java/org/apache/tuscany/sca/cloud/data/impl/MemcacheDocumentServiceImpl.java')
-rw-r--r-- | sandbox/sca-cloud-tutorial/cloud-google/src/main/java/org/apache/tuscany/sca/cloud/data/impl/MemcacheDocumentServiceImpl.java | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/sandbox/sca-cloud-tutorial/cloud-google/src/main/java/org/apache/tuscany/sca/cloud/data/impl/MemcacheDocumentServiceImpl.java b/sandbox/sca-cloud-tutorial/cloud-google/src/main/java/org/apache/tuscany/sca/cloud/data/impl/MemcacheDocumentServiceImpl.java new file mode 100644 index 0000000000..890747f4aa --- /dev/null +++ b/sandbox/sca-cloud-tutorial/cloud-google/src/main/java/org/apache/tuscany/sca/cloud/data/impl/MemcacheDocumentServiceImpl.java @@ -0,0 +1,90 @@ +/* + * 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.tuscany.sca.cloud.data.impl; + +import java.util.UUID; + +import org.apache.tuscany.sca.cloud.data.DocumentService; +import org.apache.tuscany.sca.data.collection.Entry; +import org.apache.tuscany.sca.data.collection.NotFoundException; +import org.oasisopen.sca.annotation.Init; +import org.oasisopen.sca.annotation.Property; + +import com.google.appengine.api.memcache.Expiration; +import com.google.appengine.api.memcache.MemcacheService; +import com.google.appengine.api.memcache.MemcacheServiceFactory; + +public class MemcacheDocumentServiceImpl implements DocumentService<Object, Object> { + private MemcacheService googleMemecacheService; + + @Property(required=false) + protected Expiration defaultExpiration = Expiration.byDeltaSeconds(3600); // 1hr + + @Init + public void init() { + googleMemecacheService = MemcacheServiceFactory.getMemcacheService(); + } + + public Entry<Object, Object>[] getAll() { + throw new UnsupportedOperationException(); + } + + public Object get(Object key) throws NotFoundException { + Object entity = null; + + entity = googleMemecacheService.get(key); + + if(entity == null) { + throw new NotFoundException("Could not find object with key '" + key.toString() + "'"); + } + + return entity; + } + + public Object post(Object key, Object entity) { + if( key == null ) { + key = UUID.randomUUID().toString(); + } + + googleMemecacheService.put(key, entity, defaultExpiration); + + return entity; + } + + public void put(Object key, Object entity) throws NotFoundException { + if( get(key) == null) { + throw new NotFoundException("Could not find entity with key '" + key.toString() +"'"); + } + + googleMemecacheService.put(key, entity, defaultExpiration); + } + + public void delete(Object key) throws NotFoundException { + googleMemecacheService.delete(key); + } + + public void delete(Object... keys) throws NotFoundException { + googleMemecacheService.delete(keys); + } + + public Entry<Object, Object>[] query(String query) { + throw new UnsupportedOperationException(); + } +} |