org.eclipse.emf.ecore.resource.impl
Class EFSURIHandlerImpl

java.lang.Object
  org.eclipse.emf.ecore.resource.impl.URIHandlerImpl
      org.eclipse.emf.ecore.resource.impl.EFSURIHandlerImpl

All Implemented Interfaces:

URIHandler

public class EFSURIHandlerImpl
extends URIHandlerImpl

Field Summary

Fields inherited from interface org.eclipse.emf.ecore.resource.URIHandler

DEFAULT_HANDLERS

Constructor Summary

EFSURIHandlerImpl()
Creates an instance.

Method Summary

boolean	canHandle(URI uri) Returns whether the URI is one that this implementation should treat as a supported Eclipse File System scheme.
java.io.InputStream	createInputStream(URI uri, java.util.Map<?,?> options) Creates an input stream for the URI, assuming it's a URI recognized by the Eclipse File System, and returns it.
java.io.OutputStream	createOutputStream(URI uri, java.util.Map<?,?> options) Creates an output stream for the URI, assuming it's a URI recognized by the Eclipse File System, and returns it.
void	delete(URI uri, java.util.Map<?,?> options) Only HTTP connections support delete.
boolean	exists(URI uri, java.util.Map<?,?> options) If a stream can be created the file exists.
java.util.Map<java.lang.String,?>	getAttributes(URI uri, java.util.Map<?,?> options) Returns a map from String attributes to their corresponding values representing information about various aspects of the URI's state.
protected java.lang.Object	getInfo(URI uri, java.util.Map<?,?> options)
protected java.lang.Object	getInfo(URI uri, java.lang.Object store, java.util.Map<?,?> options)
protected java.lang.Object	getStore(URI uri, java.util.Map<?,?> options)
void	setAttributes(URI uri, java.util.Map<java.lang.String,?> attributes, java.util.Map<?,?> options) Updates the map from String attributes to their corresponding values representing information about various aspects of the URI's state.
protected void	setInfo(URI uri, java.lang.Object store, java.lang.Object info, int set, java.util.Map<?,?> options)

Methods inherited from class org.eclipse.emf.ecore.resource.impl.URIHandlerImpl

contentDescription, getRequestedAttributes, getResponse, getURIConverter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EFSURIHandlerImpl

public EFSURIHandlerImpl()

Creates an instance.

Method Detail

canHandle

public boolean canHandle(URI uri)

Returns whether the URI is one that this implementation should treat as a supported Eclipse File System scheme. This implementation uses Java reflection to check whether there is an Eclipse File System available and if so whether it supports this scheme.

Specified by:

canHandle in interface URIHandler

Overrides:

canHandle in class URIHandlerImpl

Parameters:

uri - the URI to consider.

Returns:

whether the URI is one that this implementation treats as an Eclipse File System scheme.

getStore

protected java.lang.Object getStore(URI uri,
                                    java.util.Map<?,?> options)
                             throws java.io.IOException,
                                    java.lang.IllegalArgumentException,
                                    java.lang.IllegalAccessException,
                                    java.lang.reflect.InvocationTargetException,
                                    java.net.URISyntaxException

Throws:

java.io.IOException

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

java.net.URISyntaxException

getInfo

protected java.lang.Object getInfo(URI uri,
                                   java.lang.Object store,
                                   java.util.Map<?,?> options)
                            throws java.io.IOException,
                                   java.lang.IllegalArgumentException,
                                   java.lang.IllegalAccessException,
                                   java.lang.reflect.InvocationTargetException,
                                   java.net.URISyntaxException

Throws:

java.io.IOException

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

java.net.URISyntaxException

getInfo

protected java.lang.Object getInfo(URI uri,
                                   java.util.Map<?,?> options)
                            throws java.io.IOException,
                                   java.lang.IllegalArgumentException,
                                   java.lang.IllegalAccessException,
                                   java.lang.reflect.InvocationTargetException,
                                   java.net.URISyntaxException

Throws:

java.io.IOException

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

java.net.URISyntaxException

setInfo

protected void setInfo(URI uri,
                       java.lang.Object store,
                       java.lang.Object info,
                       int set,
                       java.util.Map<?,?> options)
                throws java.io.IOException,
                       java.lang.IllegalArgumentException,
                       java.lang.IllegalAccessException,
                       java.lang.reflect.InvocationTargetException,
                       java.net.URISyntaxException

Throws:

java.io.IOException

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

java.net.URISyntaxException

createOutputStream

public java.io.OutputStream createOutputStream(URI uri,
                                               java.util.Map<?,?> options)
                                        throws java.io.IOException

Creates an output stream for the URI, assuming it's a URI recognized by the Eclipse File System, and returns it.

Specified by:

createOutputStream in interface URIHandler

Overrides:

createOutputStream in class URIHandlerImpl

Parameters:

uri - the URI for which to create the output stream.

options - a map of options to influence the kind of stream that is returned; unrecognized options are ignored and null is permitted.

Returns:

an open output stream.

Throws:

java.io.IOException - if there is a problem obtaining an open output stream.

See Also:

URIConverter.createOutputStream(URI, Map)

createInputStream

public java.io.InputStream createInputStream(URI uri,
                                             java.util.Map<?,?> options)
                                      throws java.io.IOException

Creates an input stream for the URI, assuming it's a URI recognized by the Eclipse File System, and returns it.

Specified by:

createInputStream in interface URIHandler

Overrides:

createInputStream in class URIHandlerImpl

Parameters:

uri - the URI for which to create the input stream.

options - a map of options to influence the kind of stream that is returned; unrecognized options are ignored and null is permitted.

Returns:

an open input stream.

Throws:

java.io.IOException - if there is a problem obtaining an open input stream.

See Also:

URIConverter.createInputStream(URI, Map)

delete

public void delete(URI uri,
                   java.util.Map<?,?> options)
            throws java.io.IOException

Description copied from class: URIHandlerImpl

Only HTTP connections support delete.

Specified by:

delete in interface URIHandler

Overrides:

delete in class URIHandlerImpl

Parameters:

uri - the URI to consider.

options - options to influence how the contents are deleted.

Throws:

java.io.IOException - if there is a problem deleting the contents.

See Also:

URIConverter.delete(URI, Map)

exists

public boolean exists(URI uri,
                      java.util.Map<?,?> options)

Description copied from class: URIHandlerImpl

If a stream can be created the file exists. Specialized support is provided for HTTP connections to avoid fetching the whole stream in that case.

Specified by:

exists in interface URIHandler

Overrides:

exists in class URIHandlerImpl

Parameters:

uri - the URI to consider.

options - options to influence how the existence determined.

Returns:

whether the given URI has contents.

See Also:

URIConverter.exists(URI, Map)

getAttributes

public java.util.Map<java.lang.String,?> getAttributes(URI uri,
                                                       java.util.Map<?,?> options)

Description copied from interface: URIHandler

Returns a map from String attributes to their corresponding values representing information about various aspects of the URI's state. The requested attributes option can be used to specify which properties to fetch; without that option, all supported attributes will be fetched. If the URI doesn't not support any particular attribute, an entry for that attribute will not be appear in the result.

Specified by:

getAttributes in interface URIHandler

Overrides:

getAttributes in class URIHandlerImpl

Parameters:

uri - the URI to consider.

options - options to influence how the attributes are determined.

Returns:

a map from String attributes to their corresponding values representing information about various aspects of the URI's state.

setAttributes

public void setAttributes(URI uri,
                          java.util.Map<java.lang.String,?> attributes,
                          java.util.Map<?,?> options)
                   throws java.io.IOException

Description copied from interface: URIHandler

Updates the map from String attributes to their corresponding values representing information about various aspects of the URI's state. Unsupported or unchangeable attributes are ignored.

Specified by:

setAttributes in interface URIHandler

Overrides:

setAttributes in class URIHandlerImpl

Parameters:

uri - the URI to consider.

attributes - the new values for the attributes.

options - options to influence how the attributes are updated.

Throws:

java.io.IOException - if there is a problem updating the attributes.