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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2015 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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*
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*
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*/
package org.glassfish.grizzly.http;
import org.glassfish.grizzly.http.util.ContentType;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.glassfish.grizzly.Buffer;
import org.glassfish.grizzly.Grizzly;
import org.glassfish.grizzly.attributes.AttributeHolder;
import org.glassfish.grizzly.attributes.AttributeStorage;
import org.glassfish.grizzly.http.util.Constants;
import org.glassfish.grizzly.http.util.ContentType.SettableContentType;
import org.glassfish.grizzly.http.util.DataChunk;
import org.glassfish.grizzly.http.util.Header;
import org.glassfish.grizzly.http.util.HeaderValue;
import org.glassfish.grizzly.http.util.HttpUtils;
import org.glassfish.grizzly.http.util.MimeHeaders;
import org.glassfish.grizzly.utils.Charsets;
/**
* {@link HttpPacket}, which represents HTTP message header. There are 2 subtypes
* of this class: {@link HttpRequestPacket} and {@link HttpResponsePacket}.
*
* @see HttpRequestPacket
* @see HttpResponsePacket
*
* @author Alexey Stashok
*/
public abstract class HttpHeader extends HttpPacket
implements MimeHeadersPacket, AttributeStorage {
private final static byte[] CHUNKED_ENCODING_BYTES =
Constants.CHUNKED_ENCODING.getBytes(Charsets.ASCII_CHARSET);
protected boolean isCommitted;
protected MimeHeaders headers;
protected final DataChunk protocolC = DataChunk.newInstance();
protected Protocol parsedProtocol;
protected boolean isChunked;
private final byte[] tmpContentLengthBuffer = new byte[20];
private final byte[] tmpHeaderEncodingBuffer = new byte[512];
protected long contentLength = -1;
protected final SettableContentType contentType = ContentType.newSettableContentType();
protected boolean isExpectContent = true;
protected boolean isSkipRemainder;
/**
* true if HTTP message payload is broken due to inappropriate
* Transfer-Encoding or Content-Encoding settings.
*/
protected boolean isContentBroken;
protected boolean secure;
/**
* true if parser has to ignore "Transfer-Encoding" and
* "Content-Encoding" headers and act as none of them were specified.
*/
private boolean isIgnoreContentModifiers;
protected final DataChunk upgrade = DataChunk.newInstance();
private TransferEncoding transferEncoding;
private final List contentEncodings =
new ArrayList(2);
// true, if content encodings for this headers were chosen
private boolean isContentEncodingsSelected;
private final AttributeHolder attributes =
Grizzly.DEFAULT_ATTRIBUTE_BUILDER.createUnsafeAttributeHolder();
private AttributeHolder activeAttributes;
Buffer headerBuffer;
/**
* Is chunking allowed to be used or not.
*/
private boolean chunkingAllowed;
public HttpHeader() {
this(new MimeHeaders());
}
protected HttpHeader(MimeHeaders headers) {
this.headers = headers;
}
void setHeaderBuffer(final Buffer headerBuffer) {
this.headerBuffer = headerBuffer;
}
/**
* {@inheritDoc}
*/
@Override
public AttributeHolder getAttributes() {
if (activeAttributes == null) {
activeAttributes = attributes;
}
return activeAttributes;
}
/**
* Returns true, if the current HttpHeader represent
* HTTP request message, or false otherwise.
*
* @return true, if the current HttpHeader represent
* HTTP request message, or false otherwise.
*/
public abstract boolean isRequest();
/**
* Returns true.
* @return true.
*/
@Override
public final boolean isHeader() {
return true;
}
/**
* Returns this HttpHeader object.
* @return this HttpHeader object.
*/
@Override
public HttpHeader getHttpHeader() {
return this;
}
public abstract ProcessingState getProcessingState();
/**
* @return the parsing state of this HTTP header, or null if the
* message is complete or shouldn't be parsed at all
*/
protected HttpPacketParsing getParsingState() {
return null;
}
protected void addContentEncoding(ContentEncoding contentEncoding) {
contentEncodings.add(contentEncoding);
}
protected List getContentEncodings(final boolean isModifiable) {
if (isModifiable) {
return contentEncodings;
} else {
return Collections.unmodifiableList(contentEncodings);
}
}
public List getContentEncodings() {
return getContentEncodings(false);
}
protected final boolean isContentEncodingsSelected() {
return isContentEncodingsSelected;
}
protected final void setContentEncodingsSelected(final boolean isContentEncodingsSelected) {
this.isContentEncodingsSelected = isContentEncodingsSelected;
}
/**
* Get the {@link TransferEncoding}, responsible for the parsing/serialization of the HTTP message content
*
* @return the {@link TransferEncoding}, responsible for the parsing/serialization of the HTTP message content
*/
public TransferEncoding getTransferEncoding() {
return transferEncoding;
}
/**
* Set the {@link TransferEncoding}, responsible for the parsing/serialization of the HTTP message content.
*
* @param transferEncoding the {@link TransferEncoding}, responsible for the parsing/serialization of the HTTP message content.
*/
protected void setTransferEncoding(TransferEncoding transferEncoding) {
this.transferEncoding = transferEncoding;
}
/**
* Returns true, if this {@link HttpPacket} content will be transferred
* in chunking mode, or false if case of fixed-length message.
*
* @return true, if this {@link HttpPacket} content will be transferred
* in chunking mode, or false if case of fixed-length message.
*/
public boolean isChunked() {
return isChunked;
}
/**
* Set true, if this {@link HttpPacket} content will be transferred
* in chunking mode, or false if case of fixed-length message.
*
* @param isChunked true, if this {@link HttpPacket} content
* will be transferred in chunking mode, or false if case
* of fixed-length message.
*/
public void setChunked(boolean isChunked) {
this.isChunked = isChunked;
}
/**
* Returns true, if HTTP message, represented by this header still
* expects additional content basing either on content-length or chunking
* information. false is returned if content no additional content
* data is expected.
* Note: this method could be used only when we parse the HTTP message
*
* @return true, if HTTP message, represented by this header still
* expects additional content basing either on content-length or chunking
* information. false is returned if content no additional content
* data is expected.
*/
public boolean isExpectContent() {
return isExpectContent;
}
public void setExpectContent(boolean isExpectContent) {
this.isExpectContent = isExpectContent;
}
/**
* Returns true, if either application or HTTP core part is not
* interested in parsing the rest of this HTTP message content and waits
* for the next HTTP message to come on this {@link org.glassfish.grizzly.Connection}.
* Otherwise returns false.
*
* @return true, if either application or HTTP core part is not
* interested in parsing the rest of this HTTP message content and waits
* for the next HTTP message to come on this {@link org.glassfish.grizzly.Connection}.
* Otherwise returns false.
*/
public boolean isSkipRemainder() {
return isSkipRemainder;
}
/**
* Set flag, which is set to true, means that we're not
* interested in parsing the rest of this HTTP message content and wait
* for the next HTTP message to come on this {@link org.glassfish.grizzly.Connection}.
*
* @param isSkipRemainder true means that we're not
* interested in parsing the rest of this HTTP message content and wait
* for the next HTTP message to come on this {@link org.glassfish.grizzly.Connection}.
*/
public void setSkipRemainder(boolean isSkipRemainder) {
this.isSkipRemainder = isSkipRemainder;
}
/**
* Returns true, if HTTP packet payload
* was detected as broken due to unexpected error occurred during
* Transfer-Encoding or Content-Encoding processing.
* Otherwise returns false.
*
* @return true, if HTTP packet payload
* was detected as broken due to unexpected error occurred during
* Transfer-Encoding or Content-Encoding processing.
* Otherwise returns false.
*/
public boolean isContentBroken() {
return isContentBroken;
}
/**
* Set flag, which is set to true, means that HTTP packet payload
* was detected as broken due to unexpected error occurred during
* Transfer-Encoding or Content-Encoding processing.
*
* @param isBroken true, means that HTTP packet payload
* was detected as broken due to unexpected error occurred during
* Transfer-Encoding or Content-Encoding processing.
*/
public void setContentBroken(final boolean isBroken) {
this.isContentBroken = isBroken;
}
/**
* @return the "Upgrade" header value.
*/
public final String getUpgrade() {
return upgrade.toString();
}
/**
* @return the "Upgrade" header value.
*/
public DataChunk getUpgradeDC() {
return upgrade;
}
/**
* Sets the "Upgrade" header value
* @param upgrade
*/
public final void setUpgrade(final String upgrade) {
this.upgrade.setString(upgrade);
}
/**
* Propagate the "Upgrade" value to headers.
*/
protected void makeUpgradeHeader() {
if (!upgrade.isNull()) {
headers.setValue(Header.Upgrade).set(upgrade);
}
}
/**
* @return true if parser has to ignore "Transfer-Encoding" and
* "Content-Encoding" headers and act as none of them were specified.
*/
public boolean isIgnoreContentModifiers() {
return isIgnoreContentModifiers;
// || (!upgrade.isNull() &&
// !upgrade.startsWith("h2c", 0)); // don't ignore content modifiers for HTTP2 upgrade
}
/**
* Set true if parser has to ignore "Transfer-Encoding" and
* "Content-Encoding" headers and act as none of them were specified.
*
* @param isIgnoreContentModifiers
*/
public void setIgnoreContentModifiers(boolean isIgnoreContentModifiers) {
this.isIgnoreContentModifiers = isIgnoreContentModifiers;
}
/**
* Makes sure content-length header is present.
*
* @param defaultLength default content-length value.
*/
protected void makeContentLengthHeader(final long defaultLength) {
if (contentLength != -1) {
final int start =
HttpUtils.longToBuffer(contentLength, tmpContentLengthBuffer);
headers.setValue(Header.ContentLength).setBytes(
tmpContentLengthBuffer, start,
tmpContentLengthBuffer.length);
} else if (defaultLength != -1) {
final int start = HttpUtils.longToBuffer(defaultLength, tmpContentLengthBuffer);
final int idx = headers.indexOf(Header.ContentLength, 0);
if (idx == -1) {
headers.addValue(Header.ContentLength).setBytes(
tmpContentLengthBuffer, start,
tmpContentLengthBuffer.length);
} else if (headers.getValue(idx).isNull()) {
headers.getValue(idx).setBytes(
tmpContentLengthBuffer, start,
tmpContentLengthBuffer.length);
}
}
}
/**
* Get the content-length of this {@link HttpPacket}. Applicable only in case
* of fixed-length HTTP message.
*
* @return the content-length of this {@link HttpPacket}. Applicable only
* in case of fixed-length HTTP message.
*/
public long getContentLength() {
return contentLength;
}
/**
* Set the length of this HTTP message.
*
* @param len the length of this HTTP message.
*/
public void setContentLength(final int len) {
this.contentLength = len;
if (len < 0) {
headers.removeHeader(Header.ContentLength);
}
}
/**
* Set the content-length of this {@link HttpPacket}. Applicable only in case
* of fixed-length HTTP message.
*
* @param contentLength the content-length of this {@link HttpPacket}.
* Applicable only in case of fixed-length HTTP message.
*/
public void setContentLengthLong(final long contentLength) {
this.contentLength = contentLength;
if (contentLength < 0) {
headers.removeHeader(Header.ContentLength);
}
}
/**
* Is this HttpHeader written? true, if this
* HttpHeader has been already serialized, and only {@link HttpContent}
* messages might be serialized for this {@link HttpPacket}.
*
* @return true, if this HttpHeader has been already
* serialized, and only {@link HttpContent} messages might be serialized
* for this {@link HttpPacket}.
*/
public boolean isCommitted() {
return isCommitted;
}
/**
* Is this HttpHeader written? true, if this
* HttpHeader has been already serialized, and only {@link HttpContent}
* messages might be serialized for this {@link HttpPacket}.
*
* @param isCommitted true, if this HttpHeader has been
* already serialized, and only {@link HttpContent} messages might be
* serialized for this {@link HttpPacket}.
*/
public void setCommitted(final boolean isCommitted) {
this.isCommitted = isCommitted;
}
// -------------------- encoding/type --------------------
/**
* Makes sure transfer-encoding header is present.
*
* @param defaultValue default transfer-encoding value.
*/
protected void makeTransferEncodingHeader(final String defaultValue) {
final int idx = headers.indexOf(Header.TransferEncoding, 0);
if (idx == -1) {
headers.addValue(Header.TransferEncoding).setBytes(
CHUNKED_ENCODING_BYTES);
}
}
/**
* Obtain content-encoding value and mark it as serialized.
*
* @param value container for the content-type value.
*/
protected void extractContentEncoding(final DataChunk value) {
final int idx = headers.indexOf(Header.ContentEncoding, 0);
if (idx != -1) {
headers.setSerialized(idx, true);
value.set(headers.getValue(idx));
}
}
/**
* @return the character encoding of this HTTP message.
*/
public String getCharacterEncoding() {
return contentType.getCharacterEncoding();
}
/**
* Set the character encoding of this HTTP message.
*
* @param charset the encoding.
*/
public void setCharacterEncoding(final String charset) {
if (isCommitted())
return;
contentType.setCharacterEncoding(charset);
}
/**
* Return true if chunking is allowed for this header.
*
* @return true if chunking is allowed for this header.
* @since 3.0
*/
public boolean isChunkingAllowed() {
return chunkingAllowed;
}
/**
* Indicate whether or not chunking may be used by this header.
*
* @param chunkingAllowed true if chunked transfer-encoding
* is allowed, otherwise returns false.
* @since 3.0
*/
public void setChunkingAllowed(boolean chunkingAllowed) {
this.chunkingAllowed = chunkingAllowed;
}
/**
* @return true if a content type has been set.
*/
public boolean isContentTypeSet() {
return contentType.isMimeTypeSet() ||
headers.getValue(Header.ContentType) != null;
}
/**
* @return the content type of this HTTP message.
*/
public String getContentType() {
return contentType.get();
}
/**
* Sets the content type.
*
* This method must preserve any charset that may already have
* been set via a call to request/response.setContentType(),
* request/response.setLocale(), or request/response.setCharacterEncoding().
*
* @param contentType the content type
*/
public void setContentType(final String contentType) {
this.contentType.set(contentType);
}
/**
* Sets the content type.
*
* This method must preserve any charset that may already have
* been set via a call to request/response.setContentType(),
* request/response.setLocale(), or request/response.setCharacterEncoding().
*
* This method copies the passed contentType state into this ContentType.
*
* @param contentType the content type
*/
public void setContentType(final ContentType contentType) {
this.contentType.set(contentType);
}
/**
* @return {@link ContentType} holder
*/
protected ContentType getContentTypeHolder() {
return contentType;
}
// -------------------- Headers --------------------
/**
* {@inheritDoc}
*/
@Override
public MimeHeaders getHeaders() {
return headers;
}
/**
* {@inheritDoc}
*/
@Override
public String getHeader(final String name) {
if (name == null) {
return null;
}
String result = handleGetSpecialHeader(name);
return (result != null) ? result : headers.getHeader(name);
}
/**
* {@inheritDoc}
*/
@Override
public String getHeader(final Header header) {
if (header == null) {
return null;
}
String result = handleGetSpecialHeader(header);
return (result != null) ? result : headers.getHeader(header);
}
/**
* {@inheritDoc}
*/
@Override
public void setHeader(final String name, final String value) {
if (name == null || value == null) {
return;
}
if (handleSetSpecialHeaders(name, value)) return;
headers.setValue(name).setString(value);
}
/**
* {@inheritDoc}
*/
@Override
public void setHeader(final String name, final HeaderValue value) {
if (name == null || value == null || !value.isSet()) {
return;
}
if (handleSetSpecialHeaders(name, value)) return;
value.serializeToDataChunk(headers.setValue(name));
}
/**
* {@inheritDoc}
*/
@Override
public void setHeader(final Header header, final String value) {
if (header == null || value == null) {
return;
}
if (handleSetSpecialHeaders(header, value)) {
return;
}
headers.setValue(header).setString(value);
}
/**
* {@inheritDoc}
*/
@Override
public void setHeader(final Header header, final HeaderValue value) {
if (header == null || value == null || !value.isSet()) {
return;
}
if (handleSetSpecialHeaders(header, value)) {
return;
}
value.serializeToDataChunk(headers.setValue(header));
}
/**
* {@inheritDoc}
*/
@Override
public void addHeader(final String name, final String value) {
if (name == null || value == null) {
return;
}
if (handleSetSpecialHeaders(name, value)) {
return;
}
headers.addValue(name).setString(value);
}
/**
* {@inheritDoc}
*/
@Override
public void addHeader(final String name, final HeaderValue value) {
if (name == null || value == null || !value.isSet()) {
return;
}
if (handleSetSpecialHeaders(name, value)) {
return;
}
value.serializeToDataChunk(headers.setValue(name));
}
/**
* {@inheritDoc}
*/
@Override
public void addHeader(final Header header, final String value) {
if (header == null || value == null) {
return;
}
if (handleSetSpecialHeaders(header, value)) {
return;
}
headers.addValue(header).setString(value);
}
/**
* {@inheritDoc}
*/
@Override
public void addHeader(final Header header, final HeaderValue value) {
if (header == null || value == null || !value.isSet()) {
return;
}
if (handleSetSpecialHeaders(header, value)) {
return;
}
value.serializeToDataChunk(headers.setValue(header));
}
/**
* {@inheritDoc}
*/
@Override
public boolean containsHeader(final String name) {
if (name == null) {
return false;
}
final String result = handleGetSpecialHeader(name);
return result != null || headers.getHeader(name) != null;
}
/**
* {@inheritDoc}
*/
@Override
public boolean containsHeader(final Header header) {
if (header == null) {
return false;
}
final String result = handleGetSpecialHeader(header);
return result != null || headers.getHeader(header) != null;
}
/**
* Get the HTTP message protocol version as {@link DataChunk}
* (avoiding creation of a String object). The result format is "HTTP/1.x".
*
* @return the HTTP message protocol version as {@link DataChunk}
* (avoiding creation of a String object). The result format is "HTTP/1.x".
*/
public DataChunk getProtocolDC() {
// potentially the value might be changed, so we need to parse it again
parsedProtocol = null;
return protocolC;
}
/**
* Get the HTTP message protocol version. The result format is "HTTP/1.x".
*
* @return the HTTP message protocol version. The result format is "HTTP/1.x".
*/
public String getProtocolString() {
if (parsedProtocol == null) {
return getProtocolDC().toString();
}
return parsedProtocol.getProtocolString();
}
/**
* Get HTTP protocol version.
* @return {@link Protocol}.
*/
public Protocol getProtocol() {
if (parsedProtocol != null) {
return parsedProtocol;
}
parsedProtocol = Protocol.valueOf(protocolC);
return parsedProtocol;
}
/**
* Set the HTTP message protocol version.
* @param protocol {@link Protocol}
*/
public void setProtocol(Protocol protocol) {
parsedProtocol = protocol;
}
/**
* @return true if this HTTP message is being transmitted
* in a secure fashion, otherwise returns false.
*/
public boolean isSecure() {
return secure;
}
/**
* Sets the secure status of this HTTP message.
*
* @param secure true if secure, otherwise false.
*/
public void setSecure(boolean secure) {
this.secure = secure;
}
/**
* Get the HTTP message content builder.
*
* @return {@link HttpContent.Builder}.
*/
public final HttpContent.Builder httpContentBuilder() {
return HttpContent.builder(this);
}
/**
* Get the HTTP message trailer-chunk builder.
*
* @return {@link HttpTrailer.Builder}.
*/
public HttpTrailer.Builder httpTrailerBuilder() {
return HttpTrailer.builder(this);
}
/**
* Reset the internal state.
*/
protected void reset() {
isContentEncodingsSelected = false;
secure = false;
isSkipRemainder = false;
isContentBroken = false;
if (activeAttributes != null) {
activeAttributes.recycle();
activeAttributes = null;
}
protocolC.recycle();
parsedProtocol = null;
contentEncodings.clear();
headers.clear();
isCommitted = false;
isChunked = false;
contentLength = -1;
contentType.reset();
chunkingAllowed = false;
transferEncoding = null;
isExpectContent = true;
upgrade.recycle();
isIgnoreContentModifiers = false;
if (headerBuffer != null) {
headerBuffer.dispose();
headerBuffer = null;
}
}
/**
* {@inheritDoc}
*/
@Override
public void recycle() {
reset();
}
protected final String handleGetSpecialHeader(final String name) {
return ((isSpecialHeader(name)) ? getValueBasedOnHeader(name) : null);
}
protected final String handleGetSpecialHeader(final Header header) {
return ((isSpecialHeader(header.toString())) ? getValueBasedOnHeader(header) : null);
}
protected final boolean handleSetSpecialHeaders(final String name, final String value) {
return isSpecialHeader(name) && setValueBasedOnHeader(name, value);
}
protected final boolean handleSetSpecialHeaders(final String name, final HeaderValue value) {
return isSpecialHeader(name) && setValueBasedOnHeader(name, value.get());
}
protected final boolean handleSetSpecialHeaders(final Header header, final String value) {
return isSpecialHeader(header.toString()) && setValueBasedOnHeader(header, value);
}
protected final boolean handleSetSpecialHeaders(final Header header, final HeaderValue value) {
return isSpecialHeader(header.toString()) && setValueBasedOnHeader(header, value.get());
}
protected static boolean isSpecialHeader(final String name) {
final char c = name.charAt(0);
return (c == 'C' || c == 'c' || c == 'U' || c == 'u');
}
public byte[] getTempHeaderEncodingBuffer() {
return tmpHeaderEncodingBuffer;
}
// --------------------------------------------------------- Private Methods
private String getValueBasedOnHeader(final Header header) {
if (Header.ContentType.equals(header)) {
final String value = getContentType();
if (value != null) {
return value;
}
} else if (Header.ContentLength.equals(header)) {
final long value = getContentLength();
if (value >= 0) {
return Long.toString(value);
}
} else if (Header.Upgrade.equals(header)) {
return getUpgrade();
}
return null;
}
private String getValueBasedOnHeader(final String name) {
if (Header.ContentType.toString().equalsIgnoreCase(name)) {
final String value = getContentType();
if (value != null) {
return value;
}
} else if (Header.ContentLength.toString().equalsIgnoreCase(name)) {
final long value = getContentLength();
if (value >= 0) {
return Long.toString(value);
}
} else if (Header.Upgrade.toString().equalsIgnoreCase(name)) {
return getUpgrade();
}
return null;
}
/**
* Set internal fields for special header names.
* Called from set/addHeader.
* Return true if the header is special, no need to set the header.
*/
private boolean setValueBasedOnHeader(final String name, final String value) {
if (Header.ContentType.toString().equalsIgnoreCase(name)) {
setContentType(value);
return true;
} else if (Header.ContentLength.toString().equalsIgnoreCase(name)) {
try {
final long cLL = Long.parseLong(value);
setContentLengthLong(cLL);
return true;
} catch (NumberFormatException ex) {
// Do nothing - the spec doesn't have any "throws"
// and the user might know what he's doing
return false;
}
} else if (Header.Upgrade.toString().equalsIgnoreCase(name)) {
setUpgrade(value);
}
//if (name.equalsIgnoreCase("Content-Language")) {
// // TODO XXX XXX Need to construct Locale or something else
//}
return false;
}
/**
* Set internal fields for special header names.
* Called from set/addHeader.
* Return true if the header is special, no need to set the header.
*/
private boolean setValueBasedOnHeader(final Header header, final String value) {
if (Header.ContentType.equals(header)) {
setContentType(value);
return true;
} else if (Header.ContentLength.equals(header)) {
try {
final long cLL = Long.parseLong(value);
setContentLengthLong(cLL);
return true;
} catch (NumberFormatException ex) {
// Do nothing - the spec doesn't have any "throws"
// and the user might know what he's doing
return false;
}
} else if (Header.Upgrade.equals(header)) {
setUpgrade(value);
}
//if (name.equalsIgnoreCase("Content-Language")) {
// // TODO XXX XXX Need to construct Locale or something else
//}
return false;
}
/**
* Flush internal fields for special header names to the headers map.
*/
protected void flushSpecialHeaders() {
if (contentLength >= 0) {
headers.setValue(Header.ContentLength).setString(String.valueOf(contentLength));
}
final String ct = getContentType();
if (ct != null) {
headers.setValue(Header.ContentType).setString(String.valueOf(ct));
}
if (!upgrade.isNull()) {
headers.setValue(Header.Upgrade).setString(upgrade.toString());
}
}
/**
* HttpHeader message builder.
*/
public static abstract class Builder {
protected Protocol protocol;
protected String protocolString;
protected Boolean chunked;
protected Long contentLength;
protected String contentType;
protected String upgrade;
protected MimeHeaders mimeHeaders;
/**
* Set the HTTP message protocol version.
* @param protocol {@link Protocol}
*/
@SuppressWarnings({"unchecked"})
public final T protocol(Protocol protocol) {
this.protocol = protocol;
protocolString = null;
return (T) this;
}
/**
* Set the HTTP message protocol version.
* @param protocolString protocol version in format "HTTP/1.x".
*/
@SuppressWarnings({"unchecked"})
public final T protocol(String protocolString) {
this.protocolString = protocolString;
protocol = null;
return (T) this;
}
/**
* Set true, if this {@link HttpPacket} content will be transferred
* in chunking mode, or false if case of fixed-length message.
*
* @param chunked true, if this {@link HttpPacket} content
* will be transferred in chunking mode, or false if case
* of fixed-length message.
*/
@SuppressWarnings({"unchecked"})
public final T chunked(boolean chunked) {
this.chunked = chunked;
contentLength = null;
return (T) this;
}
/**
* Set the content-length of this {@link HttpPacket}. Applicable only in case
* of fixed-length HTTP message.
*
* @param contentLength the content-length of this {@link HttpPacket}.
* Applicable only in case of fixed-length HTTP message.
*/
@SuppressWarnings({"unchecked"})
public final T contentLength(long contentLength) {
this.contentLength = contentLength;
chunked = null;
return (T) this;
}
/**
* Set the content-type of this {@link HttpPacket}.
*
* @param contentType the content-type of this {@link HttpPacket}.
*/
@SuppressWarnings({"unchecked"})
public final T contentType(String contentType) {
this.contentType = contentType;
return (T) this;
}
/**
* Set the HTTP upgrade type.
*
* @param upgrade the type of upgrade.
*/
@SuppressWarnings({"unchecked"})
public final T upgrade(String upgrade) {
this.upgrade = upgrade;
return (T) this;
}
/**
* Add the HTTP mime header.
*
* @param name the mime header name.
* @param value the mime header value.
*/
@SuppressWarnings({"unchecked"})
public final T header(String name, String value) {
if (mimeHeaders == null) {
mimeHeaders = new MimeHeaders();
}
mimeHeaders.addValue(name).setString(value);
handleSpecialHeaderAdd(name, value);
return (T) this;
}
/**
* Remove the specified header from this builder. This method is only
* useful if using the same builder to create multiple objects.
*
* @param header the mime header.
* @return this
*/
@SuppressWarnings({"unchecked"})
public final T removeHeader(String header) {
if (mimeHeaders != null) {
mimeHeaders.removeHeader(header);
handleSpecialHeaderRemove(header);
}
return (T) this;
}
/**
* Add the HTTP mime header.
*
* @param header the mime {@link Header}.
* @param value the mime header value.
*/
@SuppressWarnings({"unchecked"})
public final T header(Header header, String value) {
if (mimeHeaders == null) {
mimeHeaders = new MimeHeaders();
}
mimeHeaders.addValue(header).setString(value);
handleSpecialHeaderAdd(header.toString(), value);
return (T) this;
}
/**
* Remove the specified header from this builder. This method is only
* useful if using the same builder to create multiple objects.
*
* @param header the mime {@link Header}.
* @return this
*/
@SuppressWarnings({"unchecked"})
public final T removeHeader(Header header) {
if (mimeHeaders != null) {
mimeHeaders.removeHeader(header);
handleSpecialHeaderRemove(header.toString());
}
return (T) this;
}
/**
* Sets the maximum number of headers allowed.
*/
@SuppressWarnings({"unchecked"})
public final T maxNumHeaders(int maxHeaders) {
if (mimeHeaders == null) {
mimeHeaders = new MimeHeaders();
}
mimeHeaders.setMaxNumHeaders(maxHeaders);
return (T) this;
}
public HttpHeader build() {
HttpHeader httpHeader = create();
if (protocol != null) {
httpHeader.setProtocol(protocol);
}
if (protocolString != null) {
httpHeader.protocolC.setString(protocolString);
}
if (chunked != null) {
httpHeader.setChunked(chunked);
}
if (contentLength != null) {
httpHeader.setContentLengthLong(contentLength);
}
if (contentType != null) {
httpHeader.setContentType(contentType);
}
if (upgrade != null) {
httpHeader.setUpgrade(upgrade);
}
if (mimeHeaders != null && mimeHeaders.size() > 0) {
httpHeader.getHeaders().copyFrom(mimeHeaders);
}
return httpHeader;
}
public void reset() {
protocol = null;
protocolString = null;
chunked = null;
contentLength = null;
contentType = null;
upgrade = null;
mimeHeaders.recycle();
}
protected abstract HttpHeader create();
private void handleSpecialHeaderAdd(final String name,
final String value) {
final char c = name.charAt(0);
boolean isC = (c == 'c' || c == 'C');
if (isC && Header.ContentLength.toString().equals(name)) {
contentLength = Long.parseLong(value);
return;
}
boolean isU = (c == 'u' || c == 'U');
if (isU && Header.Upgrade.toString().equals(name)) {
upgrade = value;
}
}
private void handleSpecialHeaderRemove(final String name) {
final char c = name.charAt(0);
boolean isC = (c == 'c' || c == 'C');
if (isC && Header.ContentLength.toString().equals(name)) {
contentLength = null;
return;
}
boolean isU = (c == 'u' || c == 'U');
if (isU && Header.Upgrade.toString().equals(name)) {
upgrade = null;
}
}
}
}
