DbgpDataTypeCommands.java

/*
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 * Copyright (C) 2008 - 2014 Overture
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
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 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
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package org.overture.ide.debug.core.dbgp.internal.commands;

import java.util.HashMap;
import java.util.Map;

import org.overture.ide.debug.core.dbgp.DbgpBaseCommands;
import org.overture.ide.debug.core.dbgp.DbgpRequest;
import org.overture.ide.debug.core.dbgp.IDbgpCommunicator;
import org.overture.ide.debug.core.dbgp.commands.IDbgpDataTypeCommands;
import org.overture.ide.debug.core.dbgp.exceptions.DbgpException;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

public class DbgpDataTypeCommands extends DbgpBaseCommands implements
		IDbgpDataTypeCommands
{
	private static final String TYPEMAP_GET_COMMAND = "typemap_get"; //$NON-NLS-1$

	private static final String ATTR_TYPE = "type"; //$NON-NLS-1$
	private static final String ATTR_NAME = "name"; //$NON-NLS-1$

	private static final String TAG_MAP = "map"; //$NON-NLS-1$

	private final Map<String, Integer> converter;

	private Integer typeToInteger(String type)
	{
		return (Integer) converter.get(type);
	}

	public DbgpDataTypeCommands(IDbgpCommunicator communicator)
	{
		super(communicator);

		converter = new HashMap<String, Integer>();
		converter.put("bool", new Integer(BOOL_TYPE)); //$NON-NLS-1$
		converter.put("int", new Integer(INT_TYPE)); //$NON-NLS-1$
		converter.put("float", new Integer(FLOAT_TYPE)); //$NON-NLS-1$
		converter.put("string", new Integer(STRING_TYPE)); //$NON-NLS-1$
		converter.put("null", new Integer(NULL_TYPE)); //$NON-NLS-1$
		converter.put("array", new Integer(ARRAY_TYPE)); //$NON-NLS-1$
		converter.put("hash", new Integer(HASH_TYPE)); //$NON-NLS-1$
		converter.put("object", new Integer(OBJECT_TYPE)); //$NON-NLS-1$
		converter.put("resource", new Integer(RESOURCE_TYPE)); //$NON-NLS-1$
	}

	public Map<String, Integer> getTypeMap() throws DbgpException
	{
		DbgpRequest request = createRequest(TYPEMAP_GET_COMMAND);
		Element element = communicate(request);

		Map<String, Integer> result = new HashMap<String, Integer>();

		NodeList maps = element.getElementsByTagName(TAG_MAP);

		for (int i = 0; i < maps.getLength(); i++)
		{
			Element map = (Element) maps.item(i);

			String type = map.getAttribute(ATTR_TYPE);
			Integer intType = typeToInteger(type);

			if (intType == null)
			{
				throw new DbgpException("Invalid Type Attribute");
			}

			String name = map.getAttribute(ATTR_NAME);

			result.put(name, intType);
		}

		return result;
	}
}