org.wildfly.httpclient.common.HttpClientXmlParser Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* JBoss, Home of Professional Open Source.
* Copyright 2017 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wildfly.httpclient.common;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.URI;
import java.util.Collections;
import org.wildfly.client.config.ClientConfiguration;
import org.wildfly.client.config.ConfigXMLParseException;
import org.wildfly.client.config.ConfigurationXMLStreamReader;
/**
* @author Stuart Douglas
*/
final class HttpClientXmlParser {
private static final String NS_EJB_HTTP_CLIENT = "urn:wildfly-http-client:1.0";
static WildflyHttpContext parseHttpContext() throws ConfigXMLParseException, IOException {
final ClientConfiguration clientConfiguration = ClientConfiguration.getInstance();
final WildflyHttpContext.Builder builder = new WildflyHttpContext.Builder();
if (clientConfiguration != null) {
try (final ConfigurationXMLStreamReader streamReader = clientConfiguration.readConfiguration(Collections.singleton(NS_EJB_HTTP_CLIENT))) {
parseDocument(streamReader, builder);
}
}
return builder.build();
}
//for testing
static WildflyHttpContext.Builder parseConfig(URI uri) throws ConfigXMLParseException {
final WildflyHttpContext.Builder builder = new WildflyHttpContext.Builder();
try (final ConfigurationXMLStreamReader streamReader = ClientConfiguration.getInstance(uri).readConfiguration(Collections.singleton(NS_EJB_HTTP_CLIENT))) {
parseDocument(streamReader, builder);
return builder;
}
}
private static void parseDocument(final ConfigurationXMLStreamReader reader, final WildflyHttpContext.Builder builder) throws ConfigXMLParseException {
if (reader.hasNext()) switch (reader.nextTag()) {
case START_ELEMENT: {
switch (reader.getNamespaceURI()) {
case NS_EJB_HTTP_CLIENT:
break;
default:
throw reader.unexpectedElement();
}
switch (reader.getLocalName()) {
case "http-client": {
parseRootElement(reader, builder);
break;
}
default:
throw reader.unexpectedElement();
}
break;
}
default: {
throw reader.unexpectedContent();
}
}
}
private static void parseRootElement(final ConfigurationXMLStreamReader reader, final WildflyHttpContext.Builder builder) throws ConfigXMLParseException {
final int attributeCount = reader.getAttributeCount();
for (int i = 0; i < attributeCount; i++) {
switch (reader.getAttributeLocalName(i)) {
default: {
throw reader.unexpectedAttribute(i);
}
}
}
while (reader.hasNext()) {
switch (reader.nextTag()) {
case START_ELEMENT: {
switch (reader.getNamespaceURI()) {
case NS_EJB_HTTP_CLIENT:
break;
default:
throw reader.unexpectedElement();
}
switch (reader.getLocalName()) {
case "configs": {
parseConfigsElement(reader, builder);
break;
}
case "defaults": {
parseDefaults(reader, builder);
break;
}
default:
throw reader.unexpectedElement();
}
break;
}
case END_ELEMENT: {
return;
}
}
}
}
private static InetSocketAddress parseBind(final ConfigurationXMLStreamReader reader) throws ConfigXMLParseException {
final int attributeCount = reader.getAttributeCount();
String address = null;
int port = 0;
for (int i = 0; i < attributeCount; i++) {
switch (reader.getAttributeLocalName(i)) {
case "address": {
address = reader.getAttributeValueResolved(i);
break;
}
case "port": {
port = reader.getIntAttributeValueResolved(i);
if (port < 0 || port > 65535) {
throw HttpClientMessages.MESSAGES.portValueOutOfRange(port);
}
break;
}
default: {
throw reader.unexpectedAttribute(i);
}
}
}
if (address == null) {
throw reader.missingRequiredAttribute(null, "address");
}
final InetSocketAddress bindAddress = InetSocketAddress.createUnresolved(address, port);
switch (reader.nextTag()) {
case END_ELEMENT: {
return bindAddress;
}
default: {
throw reader.unexpectedElement();
}
}
}
private static long parseLongElement(final ConfigurationXMLStreamReader reader) throws ConfigXMLParseException {
final int attributeCount = reader.getAttributeCount();
Long value = null;
for (int i = 0; i < attributeCount; i++) {
switch (reader.getAttributeLocalName(i)) {
case "value": {
value = reader.getLongAttributeValueResolved(i);
break;
}
default: {
throw reader.unexpectedAttribute(i);
}
}
}
if (value == null) {
throw reader.missingRequiredAttribute(null, "value");
}
switch (reader.nextTag()) {
case END_ELEMENT: {
return value;
}
default: {
throw reader.unexpectedElement();
}
}
}
private static int parseIntElement(final ConfigurationXMLStreamReader reader) throws ConfigXMLParseException {
final int attributeCount = reader.getAttributeCount();
Integer value = null;
for (int i = 0; i < attributeCount; i++) {
switch (reader.getAttributeLocalName(i)) {
case "value": {
value = reader.getIntAttributeValueResolved(i);
break;
}
default: {
throw reader.unexpectedAttribute(i);
}
}
}
if (value == null) {
throw reader.missingRequiredAttribute(null, "value");
}
switch (reader.nextTag()) {
case END_ELEMENT: {
return value;
}
default: {
throw reader.unexpectedElement();
}
}
}
private static boolean parseBooleanElement(final ConfigurationXMLStreamReader reader) throws ConfigXMLParseException {
final int attributeCount = reader.getAttributeCount();
Boolean value = null;
for (int i = 0; i < attributeCount; i++) {
switch (reader.getAttributeLocalName(i)) {
case "value": {
value = reader.getBooleanAttributeValueResolved(i);
break;
}
default: {
throw reader.unexpectedAttribute(i);
}
}
}
if (value == null) {
throw reader.missingRequiredAttribute(null, "value");
}
switch (reader.nextTag()) {
case END_ELEMENT: {
return value;
}
default: {
throw reader.unexpectedElement();
}
}
}
private static void parseConfigsElement(final ConfigurationXMLStreamReader reader, final WildflyHttpContext.Builder builder) throws ConfigXMLParseException {
final int attributeCount = reader.getAttributeCount();
if (attributeCount > 0) {
throw reader.unexpectedAttribute(0);
}
while (reader.hasNext()) {
switch (reader.nextTag()) {
case START_ELEMENT: {
switch (reader.getNamespaceURI()) {
case NS_EJB_HTTP_CLIENT:
break;
default:
throw reader.unexpectedElement();
}
switch (reader.getLocalName()) {
case "config": {
parseConfig(reader, builder);
break;
}
default:
throw reader.unexpectedElement();
}
break;
}
case END_ELEMENT: {
return;
}
}
}
}
private static void parseDefaults(final ConfigurationXMLStreamReader reader, final WildflyHttpContext.Builder builder) throws ConfigXMLParseException {
if (reader.getAttributeCount() > 0) {
throw reader.unexpectedAttribute(0);
}
while (reader.hasNext()) {
switch (reader.nextTag()) {
case START_ELEMENT: {
switch (reader.getNamespaceURI()) {
case NS_EJB_HTTP_CLIENT:
break;
default:
throw reader.unexpectedElement();
}
switch (reader.getLocalName()) {
case "bind-address": {
builder.setDefaultBindAddress(parseBind(reader));
break;
}
case "idle-timeout": {
builder.setIdleTimeout(parseLongElement(reader));
break;
}
case "max-connections": {
builder.setMaxConnections(parseIntElement(reader));
break;
}
case "max-streams-per-connection": {
builder.setMaxStreamsPerConnection(parseIntElement(reader));
break;
}
case "eagerly-acquire-session": {
builder.setEagerlyAcquireSession(parseBooleanElement(reader));
break;
}
case "enable-http2": {
builder.setEnableHttp2(parseBooleanElement(reader));
break;
}
case "buffer-pool": {
builder.setBufferConfig(parseBufferConfig(reader));
break;
}
default:
throw reader.unexpectedElement();
}
break;
}
case END_ELEMENT: {
return;
}
}
}
}
private static WildflyHttpContext.BufferBuilder parseBufferConfig(final ConfigurationXMLStreamReader reader) throws ConfigXMLParseException {
final int attributeCount = reader.getAttributeCount();
Integer bufferSize = null;
Integer maxSize = null;
Integer threadLocalSize = null;
Boolean direct = null;
for (int i = 0; i < attributeCount; i++) {
switch (reader.getAttributeLocalName(i)) {
case "buffer-size": {
bufferSize = reader.getIntAttributeValueResolved(i);
break;
}
case "max-size": {
maxSize = reader.getIntAttributeValueResolved(i);
break;
}
case "thread-local-size": {
threadLocalSize = reader.getIntAttributeValueResolved(i);
break;
}
case "direct": {
direct = reader.getBooleanAttributeValueResolved(i);
break;
}
default: {
throw reader.unexpectedAttribute(i);
}
}
}
if (bufferSize == null) {
throw reader.missingRequiredAttribute(null, "value");
}
WildflyHttpContext.BufferBuilder value = new WildflyHttpContext.BufferBuilder();
value.setBufferSize(bufferSize);
if(maxSize != null) {
value.setMaxSize(maxSize);
}
if(threadLocalSize != null) {
value.setThreadLocalSize(threadLocalSize);
}
if(direct != null) {
value.setDirect( direct);
}
switch (reader.nextTag()) {
case END_ELEMENT: {
return value;
}
default: {
throw reader.unexpectedElement();
}
}
}
private static void parseConfig(final ConfigurationXMLStreamReader reader, final WildflyHttpContext.Builder builder) throws ConfigXMLParseException {
final int attributeCount = reader.getAttributeCount();
URI uri = null;
for (int i = 0; i < attributeCount; i++) {
switch (reader.getAttributeLocalName(i)) {
case "uri": {
uri = reader.getURIAttributeValueResolved(i);
break;
}
default: {
throw reader.unexpectedAttribute(i);
}
}
}
if (uri == null) {
throw reader.missingRequiredAttribute(null, "uri");
}
final WildflyHttpContext.Builder.HttpConfigBuilder targetBuilder = builder.addConfig(uri);
while (reader.hasNext()) {
switch (reader.nextTag()) {
case START_ELEMENT: {
switch (reader.getNamespaceURI()) {
case NS_EJB_HTTP_CLIENT:
break;
default:
throw reader.unexpectedElement();
}
switch (reader.getLocalName()) {
case "idle-timeout": {
targetBuilder.setIdleTimeout(parseLongElement(reader));
break;
}
case "max-connections": {
targetBuilder.setMaxConnections(parseIntElement(reader));
break;
}
case "max-streams-per-connection": {
targetBuilder.setMaxStreamsPerConnection(parseIntElement(reader));
break;
}
case "eagerly-acquire-session": {
targetBuilder.setEagerlyAcquireSession(parseBooleanElement(reader));
break;
}
case "enable-http2": {
targetBuilder.setEnableHttp2(parseBooleanElement(reader));
break;
}
case "bind-address": {
targetBuilder.setBindAddress(parseBind(reader));
break;
}
default:
throw reader.unexpectedElement();
}
break;
}
case END_ELEMENT: {
return;
}
}
}
}
}