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Made EncodedResource based variant public; consistently detect XML properties across all variants 

Issue: SPR-9078
This commit is contained in:
Juergen Hoeller 2013-01-24 14:56:45 +01:00
parent d46a82bbb0
commit 078a1c5db8
1 changed files with 97 additions and 75 deletions
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172
spring-core/src/main/java/org/springframework/core/io/support/PropertiesLoaderUtils.java
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@ -49,92 +49,27 @@ public abstract class PropertiesLoaderUtils {
/** /**
* Load properties from the given resource. * Load properties from the given EncodedResource,
* @param resource the resource to load from * potentially defining a specific encoding for the properties file.
* @return the populated Properties instance * @see #fillProperties(java.util.Properties, EncodedResource)
* @throws IOException if loading failed
*/ */
public static Properties loadProperties(Resource resource) throws IOException { public static Properties loadProperties(EncodedResource resource) throws IOException {
Properties props = new Properties(); Properties props = new Properties();
fillProperties(props, resource); fillProperties(props, resource);
return props; return props;
} }
/** /**
* Fill the given properties from the given resource. * Fill the given properties from the given EncodedResource,
* @param props the Properties instance to fill * potentially defining a specific encoding for the properties file.
* @param props the Properties instance to load into
* @param resource the resource to load from * @param resource the resource to load from
* @throws IOException if loading failed * @throws IOException in case of I/O errors
*/ */
public static void fillProperties(Properties props, Resource resource) throws IOException { public static void fillProperties(Properties props, EncodedResource resource)
InputStream is = resource.getInputStream(); throws IOException {
try {
props.load(is);
}
finally {
is.close();
}
}
/**
* Load all properties from the given class path resource,
* using the default class loader.
* <p>Merges properties if more than one resource of the same name
* found in the class path.
* @param resourceName the name of the class path resource
* @return the populated Properties instance
* @throws IOException if loading failed
*/
public static Properties loadAllProperties(String resourceName) throws IOException {
return loadAllProperties(resourceName, null);
}
/**
* Load all properties from the given class path resource,
* using the given class loader.
* <p>Merges properties if more than one resource of the same name
* found in the class path.
* @param resourceName the name of the class path resource
* @param classLoader the ClassLoader to use for loading
* (or {@code null} to use the default class loader)
* @return the populated Properties instance
* @throws IOException if loading failed
*/
public static Properties loadAllProperties(String resourceName, ClassLoader classLoader) throws IOException {
Assert.notNull(resourceName, "Resource name must not be null");
ClassLoader clToUse = classLoader;
if (clToUse == null) {
clToUse = ClassUtils.getDefaultClassLoader();
}
Properties properties = new Properties();
Enumeration urls = clToUse.getResources(resourceName);
while (urls.hasMoreElements()) {
URL url = (URL) urls.nextElement();
InputStream is = null;
try {
URLConnection con = url.openConnection();
ResourceUtils.useCachesIfNecessary(con);
is = con.getInputStream();
properties.load(is);
}
finally {
if (is != null) {
is.close();
}
}
}
return properties;
}
/**
* Load the properties from the given encoded resource.
* @see #fillProperties
*/
static Properties loadProperties(EncodedResource resource) throws IOException {
Properties props = new Properties();
fillProperties(props, resource, new DefaultPropertiesPersister()); fillProperties(props, resource, new DefaultPropertiesPersister());
return props;
} }
/** /**
@ -174,4 +109,91 @@ public abstract class PropertiesLoaderUtils {
} }
} }
/**
* Load properties from the given resource (in ISO-8859-1 encoding).
* @param resource the resource to load from
* @return the populated Properties instance
* @throws IOException if loading failed
* @see #fillProperties(java.util.Properties, Resource)
*/
public static Properties loadProperties(Resource resource) throws IOException {
Properties props = new Properties();
fillProperties(props, resource);
return props;
}
/**
* Fill the given properties from the given resource (in ISO-8859-1 encoding).
* @param props the Properties instance to fill
* @param resource the resource to load from
* @throws IOException if loading failed
*/
public static void fillProperties(Properties props, Resource resource) throws IOException {
InputStream is = resource.getInputStream();
try {
String filename = resource.getFilename();
if (filename != null && filename.endsWith(XML_FILE_EXTENSION)) {
props.loadFromXML(is);
}
else {
props.load(is);
}
}
finally {
is.close();
}
}
/**
* Load all properties from the specified class path resource
* (in ISO-8859-1 encoding), using the default class loader.
* <p>Merges properties if more than one resource of the same name
* found in the class path.
* @param resourceName the name of the class path resource
* @return the populated Properties instance
* @throws IOException if loading failed
*/
public static Properties loadAllProperties(String resourceName) throws IOException {
return loadAllProperties(resourceName, null);
}
/**
* Load all properties from the specified class path resource
* (in ISO-8859-1 encoding), using the given class loader.
* <p>Merges properties if more than one resource of the same name
* found in the class path.
* @param resourceName the name of the class path resource
* @param classLoader the ClassLoader to use for loading
* (or {@code null} to use the default class loader)
* @return the populated Properties instance
* @throws IOException if loading failed
*/
public static Properties loadAllProperties(String resourceName, ClassLoader classLoader) throws IOException {
Assert.notNull(resourceName, "Resource name must not be null");
ClassLoader clToUse = classLoader;
if (clToUse == null) {
clToUse = ClassUtils.getDefaultClassLoader();
}
Properties props = new Properties();
Enumeration urls = clToUse.getResources(resourceName);
while (urls.hasMoreElements()) {
URL url = (URL) urls.nextElement();
URLConnection con = url.openConnection();
ResourceUtils.useCachesIfNecessary(con);
InputStream is = con.getInputStream();
try {
if (resourceName != null && resourceName.endsWith(XML_FILE_EXTENSION)) {
props.loadFromXML(is);
}
else {
props.load(is);
}
}
finally {
is.close();
}
}
return props;
}
} }