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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. 
 *
 * ====================================================================
 * 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.jclouds.vcloud.util;

import java.net.URI;
import java.util.Map;

import org.jclouds.vcloud.domain.VCloudError;
import org.jclouds.vcloud.domain.ReferenceType;
import org.jclouds.vcloud.domain.VCloudError.MinorCode;
import org.jclouds.vcloud.domain.internal.ErrorImpl;
import org.jclouds.vcloud.domain.internal.ReferenceTypeImpl;
import org.xml.sax.Attributes;

import com.google.common.collect.Maps;

/**
 * 
 * @author Adrian Cole
 */
public class Utils {

   public static ReferenceType newReferenceType(Map attributes, String defaultType) {
      String uri = attributes.get("href");
      String type = attributes.get("type");
      return new ReferenceTypeImpl(attributes.get("name"), type != null ? type : defaultType, URI.create(uri));
   }

   public static Map cleanseAttributes(Attributes in) {
      Map attrs = Maps.newLinkedHashMap();
      for (int i = 0; i < in.getLength(); i++) {
         String name = in.getQName(i);
         if (name.indexOf(':') != -1)
            name = name.substring(name.indexOf(':') + 1);
         attrs.put(name, in.getValue(i));
      }
      return attrs;
   }

   public static ReferenceType newReferenceType(Map attributes) {
      return newReferenceType(attributes, null);
   }

   public static VCloudError newError(Map attributes) {

      String vendorSpecificErrorCode = attributes.get("vendorSpecificErrorCode");
      int errorCode;
      // remove this logic when vcloud 0.8 is gone
      try {
         errorCode = Integer.parseInt(attributes.get("majorErrorCode"));
      } catch (NumberFormatException e) {
         errorCode = 500;
         vendorSpecificErrorCode = attributes.get("majorErrorCode");
      }
      MinorCode minorErrorCode = attributes.containsKey("minorErrorCode") ? MinorCode.fromValue(attributes
               .get("minorErrorCode")) : null;
      if (minorErrorCode == null || minorErrorCode == MinorCode.UNRECOGNIZED) {
         vendorSpecificErrorCode = attributes.get("minorErrorCode");
      }

      return new ErrorImpl(attributes.get("message"), errorCode, minorErrorCode, vendorSpecificErrorCode, attributes
               .get("stackTrace"));
   }

   public static void putReferenceType(Map map, Map attributes) {
      map.put(attributes.get("name"), newReferenceType(attributes));
   }
}