-
Notifications
You must be signed in to change notification settings - Fork 111
/
DataSourceClassPathResolver.java
131 lines (120 loc) · 4.27 KB
/
DataSourceClassPathResolver.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/*
* 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.commons.mail.resolver;
import javax.activation.DataSource;
import javax.activation.FileTypeMap;
import javax.mail.util.ByteArrayDataSource;
import java.io.IOException;
import java.io.InputStream;
/**
* Creates a {@code DataSource} based on an class path.
*
* @since 1.3
*/
public class DataSourceClassPathResolver extends DataSourceBaseResolver
{
/** the base string of the resource relative to the classpath when resolving relative paths */
private final String classPathBase;
/**
* Constructor
*/
public DataSourceClassPathResolver()
{
this.classPathBase = "/";
}
/**
* Constructor.
*
* @param classPathBase a base class path
*/
public DataSourceClassPathResolver(final String classPathBase)
{
this.classPathBase = classPathBase.endsWith("/") ? classPathBase : classPathBase + "/";
}
/**
* Constructor.
*
* @param classPathBase a base class path
* @param lenient shall we ignore resources not found or throw an exception?
*/
public DataSourceClassPathResolver(final String classPathBase, final boolean lenient)
{
super(lenient);
this.classPathBase = classPathBase.endsWith("/") ? classPathBase : classPathBase + "/";
}
/**
* @return the classPathBase
*/
public String getClassPathBase()
{
return classPathBase;
}
/** {@inheritDoc} */
@Override
public DataSource resolve(final String resourceLocation) throws IOException
{
return resolve(resourceLocation, isLenient());
}
/** {@inheritDoc} */
@Override
public DataSource resolve(final String resourceLocation, final boolean isLenient) throws IOException
{
DataSource result = null;
try
{
if (!isCid(resourceLocation) && !isHttpUrl(resourceLocation))
{
final String mimeType = FileTypeMap.getDefaultFileTypeMap().getContentType(resourceLocation);
final String resourceName = getResourceName(resourceLocation);
try (InputStream is = DataSourceClassPathResolver.class.getResourceAsStream(resourceName)){
if (is == null) {
if (isLenient)
{
return null;
}
throw new IOException("The following class path resource was not found : " + resourceLocation);
}
final ByteArrayDataSource ds = new ByteArrayDataSource(is, mimeType);
// EMAIL-125: set the name of the DataSource to the normalized resource URL
// similar to other DataSource implementations, e.g. FileDataSource, URLDataSource
ds.setName(DataSourceClassPathResolver.class.getResource(resourceName).toString());
result = ds;
}
}
return result;
}
catch (final IOException e)
{
if (isLenient)
{
return null;
}
throw e;
}
}
/**
* Returns the resource name for a given resource location.
*
* @param resourceLocation the resource location
* @return {@link #getClassPathBase()} + {@code resourceLocation}
* @see #getClassPathBase()
*/
private String getResourceName(final String resourceLocation)
{
return (getClassPathBase() + resourceLocation).replace("//", "/");
}
}