/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/package com.nokia.s60tools.crashanalyser.containers;

import org.w3c.dom.NamedNodeMap;

import org.w3c.dom.Node;

public final class OstTraceLine {

	// XML tags

	public static final String TAG_LINE              = "line";

	public static final String ATTRIBUTE_TYPE        = "type";

	public static final String ATTRIBUTE_TIMESTAMP   = "timestamp";

	public static final String ATTRIBUTE_PREFIX      = "prefix";

	public static final String ATTRIBUTE_COMPONENT   = "component";

	public static final String ATTRIBUTE_GROUP       = "group";

	public static final String ATTRIBUTE_ID          = "id";

	public static final String ATTRIBUTE_FILE        = "file";

	public static final String ATTRIBUTE_LINE_NUMBER = "line_number";

	public static final String ATTRIBUTE_CONTEXT_ID  = "context_id";

	private final String type;

	private final String timestamp;

	private final String prefix;

	private final String component;

	private final String group;

	private final String id;

	private final String file;

	private final String lineNumber;

	private final String contextId;

	private final String traceText;

	/**

	 * Constructor

	 * @param aType type

	 * @param aTimestamp timestamp

	 * @param aPrefix prefix

	 * @param aComponent component

	 * @param aGroup group

	 * @param aId id

	 * @param aFile file

	 * @param aLineNumber line number

	 * @param aContextId context id

	 * 

	 */

	private OstTraceLine(String aType, String aTimestamp, String aPrefix,

			String aComponent, String aGroup, String aId, String aFile, 

			String aLineNumber, String aContextId, String aTraceText) {

		type = aType;

		timestamp = aTimestamp;

		prefix = aPrefix;

		component = aComponent;

		group = aGroup;

		id = aId;

		file = aFile;

		lineNumber = aLineNumber;

		contextId = aContextId;

		traceText = aTraceText;

	}

	/**

	 * Reads trace from an XML element

	 * @param elementTraceLine One line element

	 * @return a created OstTrace class or null

	 */

	public static OstTraceLine read(Node elementTraceLine) {

		if (elementTraceLine.getNodeName().equals(TAG_LINE)) {

			String traceTextStr = elementTraceLine.getFirstChild().getNodeValue();			

			NamedNodeMap attributes = elementTraceLine.getAttributes();

			if(attributes != null) {

				String typeStr = getAttributeStr(attributes, ATTRIBUTE_TYPE);

				String timestampStr = getAttributeStr(attributes, ATTRIBUTE_TIMESTAMP);

				String prefixStr = getAttributeStr(attributes, ATTRIBUTE_PREFIX);

				String componentStr = getAttributeStr(attributes, ATTRIBUTE_COMPONENT);

				String groupStr = getAttributeStr(attributes, ATTRIBUTE_GROUP);

				String idStr = getAttributeStr(attributes, ATTRIBUTE_ID);

				String fileStr = getAttributeStr(attributes, ATTRIBUTE_FILE);

				String lineNumberStr = getAttributeStr(attributes, ATTRIBUTE_LINE_NUMBER);

				String contextIdStr = getAttributeStr(attributes, ATTRIBUTE_CONTEXT_ID);

			return new OstTraceLine(typeStr, timestampStr, prefixStr, componentStr, groupStr, idStr, 

				fileStr, lineNumberStr, contextIdStr, traceTextStr);

			}

		}

		return null;

	}

	public String getType() {

		return type;

	}

	public String getTimestamp() {

		return timestamp;

	}

	public String getPrefix() {

		return prefix;

	}

	public String getComponent() {

		return component;

	}

	public String getGroup() {

		return group;

	}

	public String getId() {

		return id;

	}

	public String getFile() {

		return file;

	}

	public String getLineNumber() {

		return lineNumber;

	}

	public String getContextId() {

		return contextId;

	}

	public String getTraceText() {

		return traceText;

	}		

	private static String getAttributeStr(NamedNodeMap attributes, String tag) {

		Node node = attributes.getNamedItem(tag);

		if (node != null) {

			return node.getNodeValue();

		}

		return "";

	}

}