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Core services for Usergrid system.
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/*******************************************************************************
 * Copyright 2012 Apigee Corporation
 * 
 * Licensed 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.usergrid.mq;

import static java.util.UUID.nameUUIDFromBytes;
import static org.apache.commons.collections.MapUtils.getBooleanValue;
import static org.apache.commons.collections.MapUtils.getByteValue;
import static org.apache.commons.collections.MapUtils.getDoubleValue;
import static org.apache.commons.collections.MapUtils.getFloatValue;
import static org.apache.commons.collections.MapUtils.getIntValue;
import static org.apache.commons.collections.MapUtils.getLongValue;
import static org.apache.commons.collections.MapUtils.getShortValue;
import static org.apache.commons.collections.MapUtils.getString;
import static org.usergrid.utils.MapUtils.hashMap;

import java.util.Map;
import java.util.TreeMap;
import java.util.UUID;

import org.apache.commons.lang.StringUtils;
import org.codehaus.jackson.annotate.JsonAnyGetter;
import org.codehaus.jackson.annotate.JsonAnySetter;
import org.codehaus.jackson.annotate.JsonIgnore;
import org.usergrid.utils.UUIDUtils;

public class Queue {

	public static final String QUEUE_ID = "uuid";
	public static final String QUEUE_PATH = "path";
	public static final String QUEUE_CREATED = "created";
	public static final String QUEUE_MODIFIED = "modified";
	public static final String QUEUE_NEWEST = "newest";
	public static final String QUEUE_OLDEST = "oldest";

	@SuppressWarnings("rawtypes")
	public static final Map QUEUE_PROPERTIES = hashMap(
			QUEUE_PATH, (Class) String.class).map(QUEUE_ID, UUID.class)
			.map(QUEUE_CREATED, Long.class).map(QUEUE_MODIFIED, Long.class)
			.map(QUEUE_NEWEST, UUID.class).map(QUEUE_OLDEST, UUID.class);

	protected Map properties = new TreeMap(
			String.CASE_INSENSITIVE_ORDER);

	public Queue(String path) {
		setPath(path);
	}

	public Queue(Map properties) {
		this.properties.putAll(properties);
	}

	@Override
	public String toString() {
		return getPath();
	}

	@JsonIgnore
	public String getPath() {
		return getString(properties, QUEUE_PATH);
	}

	public void setPath(String path) {
		properties.put(QUEUE_PATH, path);
	}

	@JsonIgnore
	public long getCreated() {
		return getLongValue(properties, QUEUE_CREATED);
	}

	public void setCreated(long created) {
		properties.put(QUEUE_CREATED, created);
	}

	@JsonIgnore
	public long getModified() {
		return getLongValue(properties, QUEUE_MODIFIED);
	}

	public void setModified(long modified) {
		properties.put(QUEUE_MODIFIED, modified);
	}

	public static Queue getDestination(String path) {
		if (path == null) {
			return null;
		}
		return new Queue(path);
	}

	@JsonAnySetter
	public void setProperty(String key, Object value) {
		properties.put(key, value);
	}

	@JsonAnyGetter
	public Map getProperties() {
		return properties;
	}

	public static String[] getQueueParentPaths(String queuePath) {
		queuePath = queuePath.toLowerCase().trim();
		String[] segments = StringUtils.split(queuePath, '/');
		String[] paths = new String[segments.length + 1];
		paths[0] = "/";
		for (int i = 0; i < segments.length; i++) {
			paths[i + 1] = "/" + StringUtils.join(segments, '/', 0, i + 1)
					+ "/";
		}
		return paths;
	}

	public static String[] getQueuePathSegments(String queuePath) {
		queuePath = queuePath.toLowerCase().trim();
		String[] segments = StringUtils.split(queuePath, '/');
		return segments;
	}

	public static String normalizeQueuePath(String queuePath) {
		if (queuePath == null) {
			return null;
		}
		queuePath = queuePath.toLowerCase().trim();
		if (queuePath.length() == 0) {
			return null;
		}
		queuePath = "/"
				+ StringUtils.join(StringUtils.split(queuePath, '/'), '/');
		if (!queuePath.endsWith("/")) {
			queuePath += "/";
		}
		return queuePath;
	}

	public static UUID getQueueId(String queuePath) {
		if (queuePath == null) {
			return null;
		}
		// is the queuePath already a UUID?
		UUID uuid = UUIDUtils.tryGetUUID(queuePath);
		if (uuid != null) {
			return uuid;
		}
		// UUID queuePath string might have been normalized
		// look for /00000000-0000-0000-0000-000000000000/
		// or /00000000-0000-0000-0000-000000000000
		if ((queuePath.length() == 38) && queuePath.startsWith("/")
				&& queuePath.endsWith("/")) {
			uuid = UUIDUtils.tryExtractUUID(queuePath, 1);
			if (uuid != null) {
				return uuid;
			}
		} else if ((queuePath.length() == 37) && queuePath.startsWith("/")) {
			uuid = UUIDUtils.tryExtractUUID(queuePath, 1);
			if (uuid != null) {
				return uuid;
			}
		}
		queuePath = normalizeQueuePath(queuePath);
		if (queuePath == null) {
			return null;
		}
		uuid = nameUUIDFromBytes(queuePath.getBytes());
		return uuid;
	}

	@JsonIgnore
	public UUID getUuid() {
		return getQueueId(getPath());
	}

	public float getFloatProperty(String name) {
		return getFloatValue(properties, name);
	}

	public void setFloatProperty(String name, float value) {
		properties.put(name, value);
	}

	public double getDoubleProperty(String name) {
		return getDoubleValue(properties, name);
	}

	public void setDoubleProperty(String name, double value) {
		properties.put(name, value);
	}

	public int getIntProperty(String name) {
		return getIntValue(properties, name);
	}

	public void setIntProperty(String name, int value) {
		properties.put(name, value);
	}

	public long getLongProperty(String name) {
		return getLongValue(properties, name);
	}

	public void setLongProperty(String name, long value) {
		properties.put(name, value);
	}

	public Object getObjectProperty(String name) {
		return properties.get(name);
	}

	public void setObjectProperty(String name, Object value) {
		properties.put(name, value);
	}

	public short getShortProperty(String name) {
		return getShortValue(properties, name);
	}

	public void setShortProperty(String name, short value) {
		properties.put(name, value);
	}

	public String getStringProperty(String name) {
		return getString(properties, name);
	}

	public void setStringProperty(String name, String value) {
		properties.put(name, value);
	}

	public boolean getBooleanProperty(String name) {
		return getBooleanValue(properties, name);
	}

	public void setBooleanProperty(String name, boolean value) {
		properties.put(name, value);
	}

	public byte getByteProperty(String name) {
		return getByteValue(properties, name);
	}

	public void setByteProperty(String name, byte value) {
		properties.put(name, value);
	}

}