001/* 002 * (C) Copyright 2006-2009 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 * 019 * $Id$ 020 */ 021 022package org.nuxeo.ecm.webdav; 023 024import org.apache.commons.logging.Log; 025import org.apache.commons.logging.LogFactory; 026import org.apache.http.HttpStatus; 027import org.nuxeo.ecm.core.api.RecoverableClientException; 028 029import javax.ws.rs.WebApplicationException; 030import javax.ws.rs.core.Response; 031import javax.ws.rs.ext.ExceptionMapper; 032import javax.ws.rs.ext.Provider; 033 034import java.io.PrintWriter; 035import java.io.StringWriter; 036 037/** 038 * Simple error handler to give back a user-readable status, and log it to the console. 039 * <p> 040 * This is a convenience for trouble-shouting. 041 */ 042@Provider 043public class ExceptionHandler implements ExceptionMapper<Exception> { 044 045 private static final Log log = LogFactory.getLog(ExceptionHandler.class); 046 047 @Override 048 public Response toResponse(Exception e) { 049 StringWriter sw = new StringWriter(); 050 e.printStackTrace(new PrintWriter(sw)); 051 int status = 500; 052 // String msg; 053 if (e instanceof WebApplicationException) { 054 status = ((WebApplicationException) e).getResponse().getStatus(); 055 if (status < 400 || status >= 500) { 056 log.error("Status = " + status); 057 log.error(e, e); 058 } 059 // msg = "Error " + status + "\n" + e.getMessage() + "\n" + sw; 060 } else if (e.getCause() instanceof RecoverableClientException 061 && ("QuotaExceededException".equals(e.getCause().getClass().getSimpleName()))) { 062 status = HttpStatus.SC_INSUFFICIENT_STORAGE; // 507 063 log.debug(e, e); 064 } else { 065 log.error(e, e); 066 // msg = "Error\n\n" + e.getMessage() + "\n\n" + sw; 067 } 068 return Response.status(status).build(); 069 } 070 071}