/*
 * 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.axiom.dom;

import java.util.MissingResourceException;
import java.util.PropertyResourceBundle;
import java.util.ResourceBundle;

import org.apache.axiom.core.CoreModelException;
import org.apache.axiom.core.HierarchyException;
import org.w3c.dom.DOMException;

public final class DOMExceptionUtil {
    private static final ResourceBundle resourceBundle =
            PropertyResourceBundle.getBundle(DOMExceptionUtil.class.getName());

    private static final String[] codeStrings = {
        // Note: order is determined by the constants defined in DOMException
        "INDEX_SIZE_ERR",
        "DOMSTRING_SIZE_ERR",
        "HIERARCHY_REQUEST_ERR",
        "WRONG_DOCUMENT_ERR",
        "INVALID_CHARACTER_ERR",
        "NO_DATA_ALLOWED_ERR",
        "NO_MODIFICATION_ALLOWED_ERR",
        "NOT_FOUND_ERR",
        "NOT_SUPPORTED_ERR",
        "INUSE_ATTRIBUTE_ERR",
        "INVALID_STATE_ERR",
        "SYNTAX_ERR",
        "INVALID_MODIFICATION_ERR",
        "NAMESPACE_ERR",
        "INVALID_ACCESS_ERR",
        "VALIDATION_ERR",
        "TYPE_MISMATCH_ERR",
    };

    private DOMExceptionUtil() {}

    public static DOMException newDOMException(short code) {
        String key = codeStrings[code - 1];
        String message;
        try {
            message = resourceBundle.getString(key);
        } catch (MissingResourceException ex) {
            message = null;
        }
        if (message == null) {
            return new DOMException(code, key);
        } else {
            return new DOMException(code, key + ": " + message);
        }
    }

    public static RuntimeException toUncheckedException(CoreModelException ex) {
        if (ex instanceof HierarchyException) {
            return newDOMException(DOMException.HIERARCHY_REQUEST_ERR);
        } else {
            return new RuntimeException(ex);
        }
    }
}
