| /* |
| * 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.openjpa.jdbc.sql; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.xml.parsers.DocumentBuilder; |
| |
| import org.apache.openjpa.jdbc.conf.JDBCConfiguration; |
| import org.apache.openjpa.lib.log.Log; |
| import org.apache.openjpa.lib.util.Localizer; |
| import org.apache.openjpa.lib.util.StringUtil; |
| import org.apache.openjpa.lib.xml.XMLFactory; |
| import org.apache.openjpa.util.StoreException; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.NamedNodeMap; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| /** |
| * Parses XML content of SQL Error State codes to populate error codes for |
| * a given Database Dictionary. |
| * |
| * @author Pinaki Poddar |
| * |
| */ |
| public class SQLErrorCodeReader { |
| private Log log = null; |
| public static final String ERROR_CODE_DELIMITER = ","; |
| public static final Map<String, Integer> storeErrorTypes = |
| new HashMap<>(); |
| static { |
| storeErrorTypes.put("lock", StoreException.LOCK); |
| storeErrorTypes.put("object-exists", StoreException.OBJECT_EXISTS); |
| storeErrorTypes.put("object-not-found", |
| StoreException.OBJECT_NOT_FOUND); |
| storeErrorTypes.put("optimistic", StoreException.OPTIMISTIC); |
| storeErrorTypes.put("referential-integrity", |
| StoreException.REFERENTIAL_INTEGRITY); |
| storeErrorTypes.put("query", StoreException.QUERY); |
| } |
| |
| private static final Localizer _loc = |
| Localizer.forPackage(SQLErrorCodeReader.class); |
| |
| public List<String> getDictionaries(InputStream in) { |
| List<String> result = new ArrayList<>(); |
| DocumentBuilder builder = XMLFactory.getDOMParser(false, false); |
| try { |
| Document doc = builder.parse(in); |
| Element root = doc.getDocumentElement(); |
| NodeList nodes = root.getElementsByTagName("dictionary"); |
| for (int i = 0; i < nodes.getLength(); i++) { |
| Node node = nodes.item(i); |
| NamedNodeMap attrs = node.getAttributes(); |
| Node dictionary = attrs.getNamedItem("class"); |
| if (dictionary != null) { |
| result.add(dictionary.getNodeValue()); |
| } |
| } |
| } catch (Throwable e) { |
| if (log.isWarnEnabled()) { |
| log.error(_loc.get("error-code-parse-error")); |
| } |
| } finally { |
| try { |
| in.close(); |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| return result; |
| } |
| |
| /** |
| * Parses given stream of XML content for error codes of the given database |
| * dictionary name. Populates the given dictionary with the error codes. |
| * |
| */ |
| public void parse(InputStream in, String dictName, DBDictionary dict) { |
| if (in == null || dict == null) |
| return; |
| log = dict.conf.getLog(JDBCConfiguration.LOG_JDBC); |
| DocumentBuilder builder = XMLFactory.getDOMParser(false, false); |
| try { |
| Document doc = builder.parse(in); |
| Element root = doc.getDocumentElement(); |
| NodeList nodes = root.getElementsByTagName("dictionary"); |
| for (int i = 0; i < nodes.getLength(); i++) { |
| Node node = nodes.item(i); |
| NamedNodeMap attrs = node.getAttributes(); |
| Node dictionary = attrs.getNamedItem("class"); |
| if (dictionary != null |
| && dictionary.getNodeValue().equals(dictName)) { |
| readErrorCodes(node, dict); |
| } |
| } |
| } catch (Throwable e) { |
| if (log.isWarnEnabled()) { |
| log.error(_loc.get("error-code-parse-error")); |
| } |
| } finally { |
| try { |
| in.close(); |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| } |
| |
| static void readErrorCodes(Node node, DBDictionary dict) { |
| NodeList children = node.getChildNodes(); |
| for (int i = 0; i < children.getLength(); i++) { |
| Node child = children.item(i); |
| short nodeType = child.getNodeType(); |
| if (nodeType == Node.ELEMENT_NODE) { |
| String errorType = child.getNodeName(); |
| Node textNode = child.getFirstChild(); |
| if (storeErrorTypes.containsKey(errorType) && textNode != null){ |
| String errorCodes = textNode.getNodeValue(); |
| if (!StringUtil.isEmpty(errorCodes)) { |
| String[] codes = errorCodes.split(ERROR_CODE_DELIMITER); |
| for (String code : codes) { |
| dict.addErrorCode(storeErrorTypes.get(errorType), |
| code.trim()); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |