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Fix ClassCastException when setting media types

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Issue: SPR-10019
This commit is contained in:
Rossen Stoyanchev
2013-01-03 15:13:19 -05:00
parent 42cdb200ed
commit 9f9f1ed253
4 changed files with 61 additions and 31 deletions
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58
spring-web/src/main/java/org/springframework/web/accept/ContentNegotiationManagerFactoryBean.java
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@@ -20,6 +20,7 @@ import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import javax.servlet.ServletContext;
@@ -52,7 +53,7 @@ public class ContentNegotiationManagerFactoryBean
private boolean ignoreAcceptHeader = false;
private Properties mediaTypes = new Properties();
private Map<String, MediaType> mediaTypes = new HashMap<String, MediaType>();
private Boolean useJaf;
@@ -64,7 +65,6 @@ public class ContentNegotiationManagerFactoryBean
private ServletContext servletContext;
/**
* Indicate whether the extension of the request path should be used to determine
* the requested media type with the <em>highest priority</em>.
@@ -77,21 +77,43 @@ public class ContentNegotiationManagerFactoryBean
}
/**
* Add mappings from file extensions to media types.
* <p>If this property is not set, the Java Action Framework, if available, may
* still be used in conjunction with {@link #setFavorPathExtension(boolean)}.
* Add mappings from file extensions to media types represented as strings.
* <p>When this mapping is not set or when an extension is not found, the Java
* Action Framework, if available, may be used if enabled via
* {@link #setFavorPathExtension(boolean)}.
*
* @see #addMediaType(String, MediaType)
* @see #addMediaTypes(Map)
*/
public void setMediaTypes(Properties mediaTypes) {
if (!CollectionUtils.isEmpty(mediaTypes)) {
for (Map.Entry<Object, Object> entry : mediaTypes.entrySet()) {
String extension = ((String) entry.getKey()).toLowerCase(Locale.ENGLISH);
for (Entry<Object, Object> entry : mediaTypes.entrySet()) {
String extension = ((String)entry.getKey()).toLowerCase(Locale.ENGLISH);
this.mediaTypes.put(extension, MediaType.valueOf((String) entry.getValue()));
}
}
}
public Properties getMediaTypes() {
return this.mediaTypes;
/**
* Add a mapping from a file extension to a media type.
* <p>If no mapping is added or when an extension is not found, the Java
* Action Framework, if available, may be used if enabled via
* {@link #setFavorPathExtension(boolean)}.
*/
public void addMediaType(String fileExtension, MediaType mediaType) {
this.mediaTypes.put(fileExtension, mediaType);
}
/**
* Add mappings from file extensions to media types.
* <p>If no mappings are added or when an extension is not found, the Java
* Action Framework, if available, may be used if enabled via
* {@link #setFavorPathExtension(boolean)}.
*/
public void addMediaTypes(Map<String, MediaType> mediaTypes) {
if (mediaTypes != null) {
this.mediaTypes.putAll(mediaTypes);
}
}
/**
@@ -99,6 +121,7 @@ public class ContentNegotiationManagerFactoryBean
* to map from file extensions to media types. This is used only when
* {@link #setFavorPathExtension(boolean)} is set to {@code true}.
* <p>The default value is {@code true}.
*
* @see #parameterName
* @see #setMediaTypes(Properties)
*/
@@ -115,6 +138,7 @@ public class ContentNegotiationManagerFactoryBean
* {@code "application/pdf"} regardless of the {@code Accept} header.
* <p>To use this option effectively you must also configure the MediaType
* type mappings via {@link #setMediaTypes(Properties)}.
*
* @see #setParameterName(String)
*/
public void setFavorParameter(boolean favorParameter) {
@@ -145,8 +169,8 @@ public class ContentNegotiationManagerFactoryBean
/**
* Set the default content type.
* <p>This content type will be used when neither the request path extension,
* nor a request parameter, nor the {@code Accept} header could help determine
* the requested content type.
* nor a request parameter, nor the {@code Accept} header could help
* determine the requested content type.
*/
public void setDefaultContentType(MediaType defaultContentType) {
this.defaultContentType = defaultContentType;
@@ -159,16 +183,12 @@ public class ContentNegotiationManagerFactoryBean
public void afterPropertiesSet() throws Exception {
List<ContentNegotiationStrategy> strategies = new ArrayList<ContentNegotiationStrategy>();
Map<String, MediaType> mediaTypesMap = new HashMap<String, MediaType>();
CollectionUtils.mergePropertiesIntoMap(this.mediaTypes, mediaTypesMap);
if (this.favorPathExtension) {
PathExtensionContentNegotiationStrategy strategy;
if (this.servletContext != null) {
strategy = new ServletPathExtensionContentNegotiationStrategy(this.servletContext, mediaTypesMap);
}
else {
strategy = new PathExtensionContentNegotiationStrategy(mediaTypesMap);
strategy = new ServletPathExtensionContentNegotiationStrategy(this.servletContext, this.mediaTypes);
} else {
strategy = new PathExtensionContentNegotiationStrategy(this.mediaTypes);
}
if (this.useJaf != null) {
strategy.setUseJaf(this.useJaf);
@@ -177,7 +197,7 @@ public class ContentNegotiationManagerFactoryBean
}
if (this.favorParameter) {
ParameterContentNegotiationStrategy strategy = new ParameterContentNegotiationStrategy(mediaTypesMap);
ParameterContentNegotiationStrategy strategy = new ParameterContentNegotiationStrategy(this.mediaTypes);
strategy.setParameterName(this.parameterName);
strategies.add(strategy);
}