Package org.apache.sling.api.resource

Class ResourceMetadata

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<String,Object>

org.apache.sling.api.resource.ResourceMetadata

All Implemented Interfaces:

Serializable, Cloneable, Map<String,Object>

public class ResourceMetadata
extends HashMap<String,Object>

The ResourceMetadata interface defines the API for the metadata of a Sling Resource. Essentially the resource's metadata is just a map of objects indexed by string keys.

The actual contents of the meta data map is implementation specific with the exception of the sling.resolutionPath property which must be provided by all implementations and contain the part of the request URI used to resolve the resource. The type of this property value is defined to be String.

Note, that the prefix sling. to key names is reserved for the Sling implementation. Once a resource is returned by the ResourceResolver, the resource metadata is made read-only and therefore can't be changed by client code!

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Field Summary

Fields

Modifier and Type	Field	Description
static String	CHARACTER_ENCODING	The name of the optional property providing the character encoding of the resource if the resource is streamable and contains character data (value is "sling.characterEncoding").
static String	CONTENT_LENGTH	The name of the optional property providing the content length of the resource if the resource is streamable (value is "sling.contentLength").
static String	CONTENT_TYPE	The name of the optional property providing the content type of the resource if the resource is streamable (value is "sling.contentType").
static String	CREATION_TIME	Returns the creation time of this resource in the repository in milliseconds (value is "sling.creationTime").
static String	INTERNAL_CONTINUE_RESOLVING	Deprecated. This flag is not supported anymore when implementing the SPI based org.apache.sling.spi.resource.provider.ResourceProvider
static String	MODIFICATION_TIME	Returns the last modification time of this resource in the repository in milliseconds (value is "sling.modificationTime").
static String	PARAMETER_MAP	Returns a map containing parameters added to path after semicolon.
static String	RESOLUTION_PATH	The name of the required property providing the part of the request URI which was used to the resolve the resource to which the meta data instance belongs (value is "sling.resolutionPath").
static String	RESOLUTION_PATH_INFO	The name of the required property providing the part of the request URI which was not used to the resolve the resource to which the meta data instance belongs (value is "sling.resolutionPathInfo").

Constructor Summary

Constructors

Constructor	Description
ResourceMetadata()

Method Summary

Modifier and Type	Method	Description
void	clear()
Object	clone()
@NotNull Set<Map.Entry<String,Object>>	entrySet()
@Nullable String	getCharacterEncoding()	Returns the CHARACTER_ENCODING property if not null and a String instance.
long	getContentLength()	Returns the CONTENT_LENGTH property if not null and a long.
@Nullable String	getContentType()	Returns the CONTENT_TYPE property if not null and a String instance.
long	getCreationTime()	Returns the CREATION_TIME property if not null and a long.
long	getModificationTime()	Returns the MODIFICATION_TIME property if not null and a long.
@Nullable Map<String,String>	getParameterMap()	Returns the PARAMETER_MAP property if not null and a Map instance.
@Nullable String	getResolutionPath()	Returns the RESOLUTION_PATH property if not null and a String instance.
@Nullable String	getResolutionPathInfo()	Returns the RESOLUTION_PATH_INFO property if not null and a String instance.
protected void	internalPut(@NotNull String key, Object value)
@NotNull Set<String>	keySet()
void	lock()	Make this object read-only.
Object	put(@NotNull String key, Object value)
void	putAll(@NotNull Map<? extends String,? extends Object> m)
Object	remove(@NotNull Object key)
void	setCharacterEncoding(String encoding)	Sets the CHARACTER_ENCODING property to encoding if not null.
void	setContentLength(long contentLength)	Sets the CONTENT_LENGTH property to contentType if not null.
void	setContentType(String contentType)	Sets the CONTENT_TYPE property to contentType if not null.
void	setCreationTime(long creationTime)	Sets the CREATION_TIME property to creationTime if not negative.
void	setModificationTime(long modificationTime)	Sets the MODIFICATION_TIME property to modificationTime if not negative.
void	setParameterMap(Map<String,String> parameterMap)	Sets the PARAMETER_MAP property to parameterMap if not null.
void	setResolutionPath(String resolutionPath)	Sets the RESOLUTION_PATH property to resolutionPath if not null.
void	setResolutionPathInfo(String resolutionPathInfo)	Sets the RESOLUTION_PATH_INFO property to resolutionPathInfo if not null.
@NotNull Collection<Object>	values()

Methods inherited from class java.util.HashMap

compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, forEach, get, getOrDefault, isEmpty, merge, putIfAbsent, remove, replace, replace, replaceAll, size

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Field Detail

RESOLUTION_PATH

public static final String RESOLUTION_PATH

The name of the required property providing the part of the request URI which was used to the resolve the resource to which the meta data instance belongs (value is "sling.resolutionPath").

See Also:

Constant Field Values

RESOLUTION_PATH_INFO

public static final String RESOLUTION_PATH_INFO

The name of the required property providing the part of the request URI which was not used to the resolve the resource to which the meta data instance belongs (value is "sling.resolutionPathInfo"). The value of this property concatenated to the value of the sling.resolutionPath property returns the original request URI leading to the resource.

This property is optional. If missing, it should be assumed equal to an empty string.

Since:

2.0.4 (Sling API Bundle 2.0.4)

See Also:

Constant Field Values

CONTENT_TYPE

public static final String CONTENT_TYPE

The name of the optional property providing the content type of the resource if the resource is streamable (value is "sling.contentType"). This property may be missing if the resource is not streamable or if the content type is not known.

See Also:

Constant Field Values

CONTENT_LENGTH

public static final String CONTENT_LENGTH

The name of the optional property providing the content length of the resource if the resource is streamable (value is "sling.contentLength"). This property may be missing if the resource is not streamable or if the content length is not known.

Note, that unlike the other properties, this property may be set only after the resource has successfully been adapted to an InputStream for performance reasons.

See Also:

Constant Field Values

CHARACTER_ENCODING

public static final String CHARACTER_ENCODING

The name of the optional property providing the character encoding of the resource if the resource is streamable and contains character data (value is "sling.characterEncoding"). This property may be missing if the resource is not streamable or if the character encoding is not known.

See Also:

Constant Field Values

CREATION_TIME

public static final String CREATION_TIME

Returns the creation time of this resource in the repository in milliseconds (value is "sling.creationTime"). The type of this property is java.lang.Long. The property may be missing if the resource is not streamable or if the creation time is not known.

See Also:

Constant Field Values

MODIFICATION_TIME

public static final String MODIFICATION_TIME

Returns the last modification time of this resource in the repository in milliseconds (value is "sling.modificationTime"). The type of this property is java.lang.Long. The property may be missing if the resource is not streamable or if the last modification time is not known.

See Also:

Constant Field Values

INTERNAL_CONTINUE_RESOLVING

@Deprecated
public static final String INTERNAL_CONTINUE_RESOLVING

Deprecated.

This flag is not supported anymore when implementing the SPI based org.apache.sling.spi.resource.provider.ResourceProvider

Returns whether the resource resolver should continue to search for a resource. A resource provider can set this flag to indicate that the resource resolver should search for a provider with a lower priority. If it finds a resource using such a provider, that resource is returned instead. If none is found this resource is returned. This flag should never be manipulated by application code! The value of this property has no meaning, the resource resolver just checks whether this flag is set or not.

Since:

2.2 (Sling API Bundle 2.2.0)

See Also:

Constant Field Values

PARAMETER_MAP

public static final String PARAMETER_MAP

Returns a map containing parameters added to path after semicolon. For instance, map for path /content/test;v='1.2.3'.html will contain one entry key v and value 1.2.3.

See Also:

Constant Field Values

Constructor Detail

ResourceMetadata

public ResourceMetadata()

Method Detail

setCharacterEncoding

public void setCharacterEncoding(String encoding)

Sets the CHARACTER_ENCODING property to encoding if not null.

Parameters:

encoding - The encoding

getCharacterEncoding

@Nullable
public @Nullable String getCharacterEncoding()

Returns the CHARACTER_ENCODING property if not null and a String instance. Otherwise null is returned.

Returns:

The character encoding

setContentType

public void setContentType(String contentType)

Sets the CONTENT_TYPE property to contentType if not null.

Parameters:

contentType - The content type

getContentType

@Nullable
public @Nullable String getContentType()

Returns the CONTENT_TYPE property if not null and a String instance. Otherwise null is returned.

Returns:

The content type

setContentLength

public void setContentLength(long contentLength)

Sets the CONTENT_LENGTH property to contentType if not null.

Parameters:

contentLength - The content length

getContentLength

public long getContentLength()

Returns the CONTENT_LENGTH property if not null and a long. Otherwise -1 is returned.

Returns:

The content length

setCreationTime

public void setCreationTime(long creationTime)

Sets the CREATION_TIME property to creationTime if not negative.

Parameters:

creationTime - The creation time

getCreationTime

public long getCreationTime()

Returns the CREATION_TIME property if not null and a long. Otherwise -1 is returned.

Returns:

The creation time

setModificationTime

public void setModificationTime(long modificationTime)

Sets the MODIFICATION_TIME property to modificationTime if not negative.

Parameters:

modificationTime - The modification time

getModificationTime

public long getModificationTime()

Returns the MODIFICATION_TIME property if not null and a long. Otherwise -1 is returned.

Returns:

The modification time

setResolutionPath

public void setResolutionPath(String resolutionPath)

Sets the RESOLUTION_PATH property to resolutionPath if not null.

Parameters:

resolutionPath - The resolution path

getResolutionPath

@Nullable
public @Nullable String getResolutionPath()

Returns the RESOLUTION_PATH property if not null and a String instance. Otherwise null is returned.

Returns:

The resolution path

setResolutionPathInfo

public void setResolutionPathInfo(String resolutionPathInfo)

Sets the RESOLUTION_PATH_INFO property to resolutionPathInfo if not null.

Parameters:

resolutionPathInfo - The resolution path info

getResolutionPathInfo

@Nullable
public @Nullable String getResolutionPathInfo()

Returns the RESOLUTION_PATH_INFO property if not null and a String instance. Otherwise null is returned.

Returns:

The resolution path info

setParameterMap

public void setParameterMap(Map<String,String> parameterMap)

Sets the PARAMETER_MAP property to parameterMap if not null.

Parameters:

parameterMap - The parameter map

getParameterMap

@Nullable
public @Nullable Map<String,String> getParameterMap()

Returns the PARAMETER_MAP property if not null and a Map instance. Otherwise null is returned.

Returns:

The parameter map

lock

public void lock()

Make this object read-only. All method calls trying to modify this object result in an exception!

Since:

2.3 (Sling API Bundle 2.4.0)

clear

public void clear()

Specified by:

clear in interface Map<String,Object>

Overrides:

clear in class HashMap<String,Object>

put

public Object put(@NotNull
                  @NotNull String key,
                  Object value)

Specified by:

put in interface Map<String,Object>

Overrides:

put in class HashMap<String,Object>

putAll

public void putAll(@NotNull
                   @NotNull Map<? extends String,? extends Object> m)

Specified by:

putAll in interface Map<String,Object>

Overrides:

putAll in class HashMap<String,Object>

remove

public Object remove(@NotNull
                     @NotNull Object key)

Specified by:

remove in interface Map<String,Object>

Overrides:

remove in class HashMap<String,Object>

internalPut

protected void internalPut(@NotNull
                           @NotNull String key,
                           Object value)

clone

public Object clone()

Overrides:

clone in class HashMap<String,Object>

entrySet

@NotNull
public @NotNull Set<Map.Entry<String,Object>> entrySet()

Specified by:

entrySet in interface Map<String,Object>

Overrides:

entrySet in class HashMap<String,Object>

keySet

@NotNull
public @NotNull Set<String> keySet()

Specified by:

keySet in interface Map<String,Object>

Overrides:

keySet in class HashMap<String,Object>

values

@NotNull
public @NotNull Collection<Object> values()

Specified by:

values in interface Map<String,Object>

Overrides:

values in class HashMap<String,Object>