package org.apache.maven.archiva.policies;

/*
 * 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.
 */

import org.apache.maven.archiva.common.ArchivaException;

import java.util.Collections;
import java.util.Map;

/**
 * One or more exceptions occurred downloading from a remote repository during the proxy phase.
 */
public class ProxyDownloadException
    extends ArchivaException
{
    /**
     * A list of failures keyed by repository ID.
     */
    private final Map<String, Exception> failures;

    public ProxyDownloadException( String message, String repositoryId, Exception cause )
    {
        super( constructMessage( message, Collections.singletonMap( repositoryId, cause ) ), cause );

        failures = Collections.singletonMap( repositoryId, cause );
    }

    public ProxyDownloadException( String message, Map<String, Exception> failures )
    {
        super( constructMessage( message, failures ) );

        this.failures = failures;
    }

    private static String constructMessage( String message, Map<String, Exception> failures )
    {
        String msg = message + ":";
        for ( Map.Entry<String, Exception> entry : failures.entrySet() )
        {
            msg += "\n\t" + entry.getKey() + ": " + entry.getValue().getMessage();
        }
        return msg;
    }

    public Map<String,Exception> getFailures()
    {
        return failures;
    }
}

@@ -1827,14 +1827,40 @@
 ring
- msg =
+Builder msg = new StringBuilder(
  mes
@@ -1869,16 +1869,18 @@
 ge + %22:%22
+ )
 ;%0A      
@@ -1975,44 +1975,73 @@
  msg
- += %22%5Cn%5Ct%22 + entry.getKey() + %22: %22 +
+.append( %22%5Cn%5Ct%22 ).append( entry.getKey() ).append( %22: %22 ).append(
  ent
@@ -2066,16 +2066,18 @@
 essage()
+ )
 ;%0A      
@@ -2098,16 +2098,27 @@
 turn msg
+.toString()
 ;%0A    %7D%0A
@@ -2140,16 +2140,17 @@
 %3CString,
+ 
 Exceptio

use StringBuilder rather than + in a loop