org.eclipse.californium.core.Utils Java Examples

/**
 * Gets a handler for CoAP responses.
 *
 * @param responseHandler The handler to invoke with the outcome of the request. the handler will be invoked with a
 *            succeeded result if the response contains the expected code. Otherwise it will be invoked with a
 *            result that is failed with a {@link CoapResultException}.
 * @param expectedStatusCode The status code that is expected in the response.
 * @return The handler.
 */
protected final CoapHandler getHandler(final Handler<AsyncResult<OptionSet>> responseHandler, final ResponseCode expectedStatusCode) {
    return new CoapHandler() {

        @Override
        public void onLoad(final CoapResponse response) {
            if (response.getCode() == expectedStatusCode) {
                logger.debug("=> received {}", Utils.prettyPrint(response));
                responseHandler.handle(Future.succeededFuture(response.getOptions()));
            } else {
                logger.warn("expected {} => received {}", expectedStatusCode, Utils.prettyPrint(response));
                responseHandler.handle(Future.failedFuture(
                        new CoapResultException(toHttpStatusCode(response.getCode()), response.getResponseText())));
            }
        }

        @Override
        public void onError() {
            responseHandler
                    .handle(Future.failedFuture(new CoapResultException(HttpURLConnection.HTTP_UNAVAILABLE)));
        }
    };
}
 

public String getPayloadTracingString() {
	if (null == payload || 0 == payload.length)
		return "no payload";
	boolean text = true;
	for (byte b:payload) {
		if (' ' > b) {
			switch(b) {
			case '\t':
			case '\n':
			case '\r':
				continue;
			}
			text = false;
			break;
		}
	}
	if (text) {
		CharsetDecoder decoder = CoAP.UTF8_CHARSET.newDecoder();
		decoder.onMalformedInput(CodingErrorAction.REPORT);
		decoder.onUnmappableCharacter(CodingErrorAction.REPORT);
		ByteBuffer in = ByteBuffer.wrap(payload);
		CharBuffer out = CharBuffer.allocate(24);
		CoderResult result = decoder.decode(in, out, true);
		decoder.flush(out);
		out.flip();
		if (CoderResult.OVERFLOW == result) {
			return "\"" + out +  "\".. " + payload.length + " bytes";
		} else if (!result.isError()){
			return "\"" + out + "\"" ;
		}
	}
	return Utils.toHexText(payload, 256);
}
 

/**
 * Adds an ETag to the If-Match options.
 * A byte array of size 0 adds an empty If-Match option,
 * which checks for existence of the targeted resource.
 * Returns the current OptionSet object for a fluent API.
 * @param etag the If-Match ETag to add
 * @return this OptionSet
 */
public OptionSet addIfMatch(byte[] etag) {
	if (etag==null)
		throw new IllegalArgumentException("If-Match option must not be null");
	if (etag.length > 8)
		throw new IllegalArgumentException("If-Match option must be smaller or equal to 8 bytes: "+Utils.toHexString(etag));
	getIfMatch().add(etag);
	return this;
}
 

public String getPayloadTracingString() {
	if (null == payload || 0 == payload.length)
		return "no payload";
	boolean text = true;
	for (byte b:payload) {
		if (' ' > b) {
			switch(b) {
			case '\t':
			case '\n':
			case '\r':
				continue;
			}
			text = false;
			break;
		}
	}
	if (text) {
		CharsetDecoder decoder = CoAP.UTF8_CHARSET.newDecoder();
		decoder.onMalformedInput(CodingErrorAction.REPORT);
		decoder.onUnmappableCharacter(CodingErrorAction.REPORT);
		ByteBuffer in = ByteBuffer.wrap(payload);
		CharBuffer out = CharBuffer.allocate(24);
		CoderResult result = decoder.decode(in, out, true);
		decoder.flush(out);
		out.flip();
		if (CoderResult.OVERFLOW == result) {
			return "\"" + out +  "\".. " + payload.length + " bytes";
		} else if (!result.isError()){
			return "\"" + out + "\"" ;
		}
	}
	return Utils.toHexText(payload, 256);
}
 

/**
 * Adds an ETag to the If-Match options.
 * A byte array of size 0 adds an empty If-Match option,
 * which checks for existence of the targeted resource.
 * Returns the current OptionSet object for a fluent API.
 * @param etag the If-Match ETag to add
 * @return this OptionSet
 */
public OptionSet addIfMatch(byte[] etag) {
	if (etag==null)
		throw new IllegalArgumentException("If-Match option must not be null");
	if (etag.length > 8)
		throw new IllegalArgumentException("If-Match option must be smaller or equal to 8 bytes: "+Utils.toHexString(etag));
	getIfMatch().add(etag);
	return this;
}
 

@Override
public String toString() {
	return "KeyMID["+MID+" for "+Utils.toHexString(address)+":"+port+"]";
}
 

@Override
public String toString() {
	return "KeyToken["+Utils.toHexString(token)+"]";
}
 

@Override
public String toString() {
	return "KeyUri["+uri+" for "+Utils.toHexString(address)+":"+port+"]";
}
 

@Override
public String toString() {
	return "KeyMID["+MID+" for "+Utils.toHexString(address)+":"+port+"]";
}
 

@Override
public String toString() {
	return "KeyToken["+Utils.toHexString(token)+"]";
}
 

@Override
public String toString() {
	return "KeyUri["+uri+" for "+Utils.toHexString(address)+":"+port+"]";
}