/*
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* JBoss, Home of Professional Open Source
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* Copyright 2005, JBoss Inc., and individual contributors as indicated
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* by the @authors tag. See the copyright.txt in the distribution for a
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* full listing of individual contributors.
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this software; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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*/
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package org.jbpm.pvm.internal.xml;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import org.jbpm.api.JbpmException;
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import org.jbpm.pvm.internal.repository.DeploymentImpl;
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import org.w3c.dom.Element;
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/** list of problems. Base class for {@link Parse}
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* and {@link DeploymentImpl}.
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*
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* @author Tom Baeyens
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*/
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public class ProblemList implements Serializable {
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private static final long serialVersionUID = 1L;
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static final String NEWLINE = System.getProperty("line.separator");
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protected List<ProblemImpl> problems;
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// problem constructor method ///////////////////////////////////////////////
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public void addProblem(String msg, Exception e, String severity, Element element) {
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ProblemImpl problem = new ProblemImpl(msg, e, severity);
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if (element!=null) {
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Integer line = (Integer) element.getUserData("line");
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if (line!=null) {
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problem.setLine(line);
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}
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Integer column = (Integer) element.getUserData("column");
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if (column!=null) {
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problem.setColumn(column);
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}
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}
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addProblem(problem);
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}
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// problem constructor methods with default values //////////////////////////
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/** add a problem with {@link ProblemImpl#TYPE_ERROR the default severity}.*/
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public void addProblem(String msg) {
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addProblem(msg, null, ProblemImpl.TYPE_ERROR, null);
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}
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/** add a problem with an exception cause and
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* {@link ProblemImpl#TYPE_ERROR the default severity}.*/
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public void addProblem(String msg, Exception e) {
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addProblem(msg, e, ProblemImpl.TYPE_ERROR, null);
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}
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/** add a problem with {@link ProblemImpl#TYPE_ERROR the default severity}.*/
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public void addProblem(String msg, Element element) {
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addProblem(msg, null, ProblemImpl.TYPE_ERROR, element);
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}
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/** add a problem with an exception cause and
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* {@link ProblemImpl#TYPE_ERROR the default severity}.*/
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public void addProblem(String msg, Exception e, Element element) {
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addProblem(msg, e, ProblemImpl.TYPE_ERROR, element);
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}
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// problem mgmt methods /////////////////////////////////////////////////////
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/** all problems encountered */
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public List<Problem> getProblems() {
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if (problems==null) {
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return Collections.emptyList();
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}
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return (List) problems;
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}
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/** to add parsing problems during XML parsing and DOM walking. */
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public void addProblem(ProblemImpl problem) {
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if (problems==null) {
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problems = new ArrayList<ProblemImpl>();
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}
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problems.add(problem);
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}
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/** add all problems */
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public void addProblems(List<Problem> problems) {
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if (this.problems==null) {
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this.problems = new ArrayList<ProblemImpl>();
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}
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this.problems.addAll((List)problems);
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}
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/** indicates presence of problems */
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public boolean hasProblems() {
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return ((problems != null) && (problems.size() > 0));
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}
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/** indicates presence of errors */
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public boolean hasErrors() {
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if (problems==null) {
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return false;
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}
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for (Problem problem: problems) {
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if (ProblemImpl.TYPE_ERROR.equals(problem.getSeverity())) {
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return true;
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}
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}
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return false;
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}
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/** allows to provide the list object that should be used to
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* capture the parsing problems. */
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public void setProblems(List<Problem> problems) {
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this.problems = (List)problems;
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}
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public JbpmException getJbpmException() {
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return getJbpmException(null);
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}
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public JbpmException getJbpmException(String message) {
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if (! hasErrors()) {
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return null;
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}
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Throwable cause = null;
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StringBuilder errorMsg = new StringBuilder();
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if (problems!=null) {
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if (message!=null) {
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errorMsg.append(message);
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errorMsg.append(": ");
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} else if (problems.size()==1) {
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Throwable singleCause = problems.get(0).getCause();
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if ( (singleCause!=null)
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&& (JbpmException.class.isAssignableFrom(singleCause.getClass()))
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) {
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return (JbpmException) singleCause;
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}
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}
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for (Problem p : getProblems()) {
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errorMsg.append(NEWLINE);
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errorMsg.append(" ");
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errorMsg.append(p.toString());
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if (p.getCause()!=null) {
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cause = new JbpmException(p.getCause());
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}
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}
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}
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return new JbpmException(errorMsg.toString(), cause);
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}
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}
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