Package org.elasticsearch.rest

Class AbstractRestChannel

java.lang.Object

org.elasticsearch.rest.AbstractRestChannel

All Implemented Interfaces:

RestChannel

Direct Known Subclasses:

DefaultRestChannel

public abstract class AbstractRestChannel
extends java.lang.Object
implements RestChannel

Field Summary

Fields

Modifier and Type	Field	Description
protected RestRequest	request

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractRestChannel(RestRequest request, boolean detailedErrorsEnabled)	Construct a channel for handling the request.

Method Summary

Modifier and Type	Method	Description
BytesStreamOutput	bytesOutput()	A channel level bytes output that can be reused.
protected BytesStreamOutput	bytesOutputOrNull()	An accessor to the raw value of the channel bytes output.
boolean	detailedErrorsEnabled()
XContentBuilder	newBuilder()
XContentBuilder	newBuilder(XContentType requestContentType, boolean useFiltering)	Creates a new XContentBuilder for a response to be sent using this channel.
protected BytesStreamOutput	newBytesOutput()
XContentBuilder	newErrorBuilder()
RestRequest	request()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.rest.RestChannel

sendResponse

Field Detail

request

protected final RestRequest request

Constructor Detail

AbstractRestChannel

protected AbstractRestChannel(RestRequest request,
                              boolean detailedErrorsEnabled)

Construct a channel for handling the request.

Parameters:

request - the request

detailedErrorsEnabled - if detailed errors should be reported to the channel

Throws:

java.lang.IllegalArgumentException - if parsing the pretty or human parameters fails

Method Detail

newBuilder

public XContentBuilder newBuilder()
                           throws java.io.IOException

Specified by:

newBuilder in interface RestChannel

Throws:

java.io.IOException

newErrorBuilder

public XContentBuilder newErrorBuilder()
                                throws java.io.IOException

Specified by:

newErrorBuilder in interface RestChannel

Throws:

java.io.IOException

newBuilder

public XContentBuilder newBuilder(@Nullable
                                  XContentType requestContentType,
                                  boolean useFiltering)
                           throws java.io.IOException

Creates a new XContentBuilder for a response to be sent using this channel. The builder's type is determined by the following logic. If the request has a format parameter that will be used to attempt to map to an XContentType. If there is no format parameter, the HTTP Accept header is checked to see if it can be matched to a XContentType. If this first attempt to map fails, the request content type will be used if the value is not null; if the value is null the output format falls back to JSON.

Specified by:

newBuilder in interface RestChannel

Throws:

java.io.IOException

bytesOutput

public final BytesStreamOutput bytesOutput()

A channel level bytes output that can be reused. The bytes output is lazily instantiated by a call to newBytesOutput(). Once the stream is created, it gets reset on each call to this method.

Specified by:

bytesOutput in interface RestChannel

bytesOutputOrNull

protected final BytesStreamOutput bytesOutputOrNull()

An accessor to the raw value of the channel bytes output. This method will not instantiate a new stream if one does not exist and this method will not reset the stream.

newBytesOutput

protected BytesStreamOutput newBytesOutput()

request

public RestRequest request()

Specified by:

request in interface RestChannel

detailedErrorsEnabled

public boolean detailedErrorsEnabled()

Specified by:

detailedErrorsEnabled in interface RestChannel

Returns:

true iff an error response should contain additional details like exception traces.