| /* |
| * 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.brooklyn.entity.database.derby; |
| |
| import static java.lang.String.format; |
| |
| import java.util.Map; |
| import java.util.concurrent.TimeUnit; |
| |
| import javax.management.ObjectName; |
| |
| import org.apache.brooklyn.core.entity.AbstractEntity; |
| import org.apache.brooklyn.core.sensor.BasicAttributeSensor; |
| import org.apache.brooklyn.util.core.flags.SetFromFlag; |
| import org.apache.brooklyn.entity.database.Schema; |
| |
| import org.apache.brooklyn.api.entity.Entity; |
| import org.apache.brooklyn.entity.java.UsesJmx; |
| import org.apache.brooklyn.feed.jmx.JmxAttributePollConfig; |
| import org.apache.brooklyn.feed.jmx.JmxFeed; |
| import org.apache.brooklyn.feed.jmx.JmxHelper; |
| import org.apache.brooklyn.api.sensor.AttributeSensor; |
| import org.apache.brooklyn.util.collections.MutableMap; |
| import org.apache.brooklyn.util.exceptions.Exceptions; |
| |
| import com.google.common.base.Objects.ToStringHelper; |
| |
| public class DerbySchema extends AbstractEntity implements Schema { |
| |
| // FIXME Needs reviewed and implemented properly; while fixing compilation errors |
| // I added enough for it to look mostly plausible but it's completely untested. |
| // And I have not looked up the derby docs to check that the attributes etc are valid. |
| |
| // TODO Somehow share jmx connection with DerbyDatabase instance |
| |
| // TODO Declare effectors |
| |
| public static AttributeSensor<Integer> SCHEMA_DEPTH = new BasicAttributeSensor<Integer>( |
| Integer.class, "derby.schema.depth", "schema depth"); |
| |
| public static AttributeSensor<Integer> MESSAGE_COUNT = new BasicAttributeSensor<Integer>( |
| Integer.class, "derby.schema.messageCount", "message count"); |
| |
| @SetFromFlag(defaultVal="localhost") |
| String virtualHost; |
| |
| @SetFromFlag(nullable=false) |
| String name; |
| |
| protected ObjectName virtualHostManager; |
| protected ObjectName exchange; |
| |
| transient JmxHelper jmxHelper; |
| transient JmxFeed jmxFeed; |
| |
| public DerbySchema() { |
| super(MutableMap.of(), null); |
| } |
| public DerbySchema(Map properties) { |
| super(properties, null); |
| } |
| public DerbySchema(Entity parent) { |
| this(MutableMap.of(), parent); |
| } |
| public DerbySchema(Map properties, Entity parent) { |
| super(properties, parent); |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| |
| @Override |
| public DerbyDatabase getParent() { |
| return (DerbyDatabase) super.getParent(); |
| } |
| |
| /** |
| * Return the JDBC connection URL for the schema. |
| */ |
| public String getConnectionUrl() { return String.format("jdbc:derby:%s", name); } |
| |
| public void init() { |
| try { |
| virtualHostManager = new ObjectName(format("org.apache.derby:type=VirtualHost.VirtualHostManager,VirtualHost=\"%s\"", virtualHost)); |
| exchange = new ObjectName(format("org.apache.derby:type=VirtualHost.Exchange,VirtualHost=\"%s\",name=\"amq.direct\",ExchangeType=direct", virtualHost)); |
| create(); |
| |
| jmxHelper = new JmxHelper(getParent()); |
| |
| ObjectName schemaMBeanName = new ObjectName(format("org.apache.derby:type=VirtualHost.Schema,VirtualHost=\"%s\",name=\"%s\"", virtualHost, name)); |
| |
| jmxFeed = JmxFeed.builder() |
| .entity(this) |
| .helper(jmxHelper) |
| .period(500, TimeUnit.MILLISECONDS) |
| .pollAttribute(new JmxAttributePollConfig<Integer>(SCHEMA_DEPTH) |
| .objectName(schemaMBeanName) |
| .attributeName("SchemaDepth")) |
| .pollAttribute(new JmxAttributePollConfig<Integer>(MESSAGE_COUNT) |
| .objectName(schemaMBeanName) |
| .attributeName("MessageCount")) |
| .build(); |
| |
| } catch (Exception e) { |
| throw Exceptions.propagate(e); |
| } |
| } |
| |
| public void create() { |
| jmxHelper.operation(virtualHostManager, "createNewSchema", name, getParent().getAttribute(UsesJmx.JMX_USER), true); |
| jmxHelper.operation(exchange, "createNewBinding", name, name); |
| } |
| |
| public void remove() { |
| jmxHelper.operation(exchange, "removeBinding", name, name); |
| jmxHelper.operation(virtualHostManager, "deleteSchema", name); |
| } |
| |
| @Override |
| public void destroy() { |
| if (jmxFeed != null) jmxFeed.stop(); |
| super.destroy(); |
| } |
| |
| @Override |
| protected ToStringHelper toStringHelper() { |
| return super.toStringHelper().add("name", name); |
| } |
| } |