/*
 * 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.postgresql;

import org.apache.brooklyn.core.effector.EffectorBody;
import org.apache.brooklyn.entity.software.base.SoftwareProcessImpl;
import org.apache.brooklyn.util.core.config.ConfigBag;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class PostgreSqlNodeImpl extends SoftwareProcessImpl implements PostgreSqlNode {

    @SuppressWarnings("unused")
    private static final Logger LOG = LoggerFactory.getLogger(PostgreSqlNodeImpl.class);

    public Class<?> getDriverInterface() {
        return PostgreSqlDriver.class;
    }
    @Override
    public PostgreSqlDriver getDriver() {
        return (PostgreSqlDriver) super.getDriver();
    }

    @Override
    public Integer getPostgreSqlPort() { return getAttribute(POSTGRESQL_PORT); }

    @Override
    public String getSharedMemory() { return getConfig(SHARED_MEMORY); }

    @Override
    public Integer getMaxConnections() { return getConfig(MAX_CONNECTIONS); }

    @Override
    public void init() {
        super.init();
        getMutableEntityType().addEffector(EXECUTE_SCRIPT, new EffectorBody<String>() {
            @Override
            public String call(ConfigBag parameters) {
                return executeScript((String) parameters.getStringKey("commands"));
            }
        });
    }

    @Override
    protected void connectSensors() {
        super.connectSensors();
        connectServiceUpIsRunning();
        // in jdbc url it is postgresql:// but elsewhere it is usually postgres://
        // TODO add a public JDBC_URL ?  
        // include user:pass@url ?  (for all datastore types, and if so, 
        // make sure ".with_credentials" or similar is in name so it is masked in ui)
        sensors().set(DATASTORE_URL, String.format("postgresql://%s:%s/", getAttribute(HOSTNAME), getAttribute(POSTGRESQL_PORT)));
    }

    @Override
    protected void disconnectSensors() {
        disconnectServiceUpIsRunning();
        super.disconnectSensors();
    }
    
    @Override
    public String getShortName() {
        return "PostgreSQL";
    }

    @Override
    public String executeScript(String commands) {
        return getDriver()
                .executeScriptAsync(commands)
                .block()
                .getStdout();
    }
}