/*
 * 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.camel.model;

import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.TimeUnit;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;

import org.apache.camel.spi.Metadata;
import org.apache.camel.util.concurrent.ThreadPoolRejectedPolicy;

/**
 * To configure thread pools
 */
@Metadata(label = "configuration")
@XmlRootElement(name = "threadPoolProfile")
@XmlAccessorType(XmlAccessType.FIELD)
public class ThreadPoolProfileDefinition extends OptionalIdentifiedDefinition<ThreadPoolProfileDefinition> {
    @XmlAttribute
    private Boolean defaultProfile;
    @XmlAttribute
    private String poolSize;
    @XmlAttribute
    private String maxPoolSize;
    @XmlAttribute
    private String keepAliveTime;
    @XmlAttribute
    @XmlJavaTypeAdapter(TimeUnitAdapter.class)
    private TimeUnit timeUnit;
    @XmlAttribute
    private String maxQueueSize;
    @XmlAttribute
    private String allowCoreThreadTimeOut;
    @XmlAttribute
    private ThreadPoolRejectedPolicy rejectedPolicy;

    public ThreadPoolProfileDefinition() {
    }

    @Override
    public String getShortName() {
        return "threadPoolProfile";
    }

    @Override
    public String getLabel() {
        return "ThreadPoolProfile " + getId();
    }

    public ThreadPoolProfileDefinition poolSize(int poolSize) {
        return poolSize("" + poolSize);
    }

    public ThreadPoolProfileDefinition poolSize(String poolSize) {
        setPoolSize(poolSize);
        return this;
    }

    public ThreadPoolProfileDefinition maxPoolSize(int maxPoolSize) {
        return maxPoolSize("" + maxQueueSize);
    }

    public ThreadPoolProfileDefinition maxPoolSize(String maxPoolSize) {
        setMaxPoolSize("" + maxPoolSize);
        return this;
    }

    public ThreadPoolProfileDefinition keepAliveTime(long keepAliveTime) {
        return keepAliveTime("" + keepAliveTime);
    }

    public ThreadPoolProfileDefinition keepAliveTime(String keepAliveTime) {
        setKeepAliveTime("" + keepAliveTime);
        return this;
    }

    public ThreadPoolProfileDefinition timeUnit(TimeUnit timeUnit) {
        setTimeUnit(timeUnit);
        return this;
    }

    public ThreadPoolProfileDefinition maxQueueSize(int maxQueueSize) {
        return maxQueueSize("" + maxQueueSize);
    }

    public ThreadPoolProfileDefinition maxQueueSize(String maxQueueSize) {
        setMaxQueueSize("" + maxQueueSize);
        return this;
    }

    public ThreadPoolProfileDefinition rejectedPolicy(ThreadPoolRejectedPolicy rejectedPolicy) {
        setRejectedPolicy(rejectedPolicy);
        return this;
    }

    public ThreadPoolProfileDefinition allowCoreThreadTimeOut(boolean allowCoreThreadTimeOut) {
        setAllowCoreThreadTimeOut("" + allowCoreThreadTimeOut);
        return this;
    }

    public Boolean getDefaultProfile() {
        return defaultProfile;
    }

    /**
     * Whether this profile is the default thread pool profile
     */
    public void setDefaultProfile(Boolean defaultProfile) {
        this.defaultProfile = defaultProfile;
    }

    public Boolean isDefaultProfile() {
        return defaultProfile != null && defaultProfile;
    }

    public String getPoolSize() {
        return poolSize;
    }

    /**
     * Sets the core pool size
     */
    public void setPoolSize(String poolSize) {
        this.poolSize = poolSize;
    }

    public String getMaxPoolSize() {
        return maxPoolSize;
    }

    /**
     * Sets the maximum pool size
     */
    public void setMaxPoolSize(String maxPoolSize) {
        this.maxPoolSize = maxPoolSize;
    }

    public String getKeepAliveTime() {
        return keepAliveTime;
    }

    /**
     * Sets the keep alive time for idle threads in the pool
     */
    public void setKeepAliveTime(String keepAliveTime) {
        this.keepAliveTime = keepAliveTime;
    }

    public String getMaxQueueSize() {
        return maxQueueSize;
    }

    /**
     * Sets the maximum number of tasks in the work queue.
     * <p/>
     * Use <tt>-1</tt> or <tt>Integer.MAX_VALUE</tt> for an unbounded queue
     */
    public void setMaxQueueSize(String maxQueueSize) {
        this.maxQueueSize = maxQueueSize;
    }

    public String getAllowCoreThreadTimeOut() {
        return allowCoreThreadTimeOut;
    }

    /**
     * Whether idle core threads is allowed to timeout and therefore can shrink
     * the pool size below the core pool size
     * <p/>
     * Is by default <tt>false</tt>
     */
    public void setAllowCoreThreadTimeOut(String allowCoreThreadTimeOut) {
        this.allowCoreThreadTimeOut = allowCoreThreadTimeOut;
    }

    public TimeUnit getTimeUnit() {
        return timeUnit;
    }

    /**
     * Sets the time unit to use for keep alive time By default SECONDS is used.
     */
    public void setTimeUnit(TimeUnit timeUnit) {
        this.timeUnit = timeUnit;
    }

    public ThreadPoolRejectedPolicy getRejectedPolicy() {
        return rejectedPolicy;
    }

    public RejectedExecutionHandler getRejectedExecutionHandler() {
        if (rejectedPolicy != null) {
            return rejectedPolicy.asRejectedExecutionHandler();
        }
        return null;
    }

    /**
     * Sets the handler for tasks which cannot be executed by the thread pool.
     */
    public void setRejectedPolicy(ThreadPoolRejectedPolicy rejectedPolicy) {
        this.rejectedPolicy = rejectedPolicy;
    }

}