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/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.cli.parsing;
import org.jboss.as.cli.CommandFormatException;
import org.jboss.as.cli.CommandLineFormat;
import org.jboss.as.cli.operation.CommandLineParser;
import org.jboss.as.cli.parsing.command.ArgumentListState;
import org.jboss.as.cli.parsing.command.ArgumentState;
import org.jboss.as.cli.parsing.command.ArgumentValueState;
import org.jboss.as.cli.parsing.command.CommandFormat;
import org.jboss.as.cli.parsing.command.CommandNameState;
import org.jboss.as.cli.parsing.command.CommandState;
import org.jboss.as.cli.parsing.operation.HeaderListState;
import org.jboss.as.cli.parsing.operation.HeaderNameState;
import org.jboss.as.cli.parsing.operation.HeaderState;
import org.jboss.as.cli.parsing.operation.HeaderValueState;
import org.jboss.as.cli.parsing.operation.NodeState;
import org.jboss.as.cli.parsing.operation.OperationFormat;
import org.jboss.as.cli.parsing.operation.OperationRequestState;
import org.jboss.as.cli.parsing.operation.PropertyListState;
/**
*
* @author Alexey Loubyansky
*/
public class ParserUtil {
public static void parse(String commandLine, final CommandLineParser.CallbackHandler handler) throws CommandFormatException {
parse(commandLine, handler, true);
}
public static void parse(String commandLine, final CommandLineParser.CallbackHandler handler, boolean strict) throws CommandFormatException {
if(commandLine == null) {
return;
}
final ParsingStateCallbackHandler callbackHandler = getCallbackHandler(handler);
StateParser.parse(commandLine, callbackHandler, InitialState.INSTANCE, strict);
}
public static void parseOperationRequest(String commandLine, final CommandLineParser.CallbackHandler handler) throws CommandFormatException {
if(commandLine == null) {
return;
}
final ParsingStateCallbackHandler callbackHandler = getCallbackHandler(handler);
StateParser.parse(commandLine, callbackHandler, OperationRequestState.INSTANCE);
}
public static void parseHeaders(String commandLine, final CommandLineParser.CallbackHandler handler) throws CommandFormatException {
if(commandLine == null) {
return;
}
final ParsingStateCallbackHandler callbackHandler = getCallbackHandler(handler);
StateParser.parse(commandLine, callbackHandler, HeaderListState.INSTANCE);
}
public static void parseCommandArgs(String commandLine, final CommandLineParser.CallbackHandler handler) throws CommandFormatException {
if(commandLine == null) {
return;
}
final ParsingStateCallbackHandler callbackHandler = getCallbackHandler(handler);
StateParser.parse(commandLine, callbackHandler, ArgumentListState.INSTANCE);
}
public static void parse(String str, final CommandLineParser.CallbackHandler handler, ParsingState initialState) throws CommandFormatException {
if(str == null) {
return;
}
final ParsingStateCallbackHandler callbackHandler = getCallbackHandler(handler);
StateParser.parse(str, callbackHandler, initialState);
}
protected static ParsingStateCallbackHandler getCallbackHandler(final CommandLineParser.CallbackHandler handler) {
return new ParsingStateCallbackHandler() {
private int nameValueSeparator = -1;
private String name;
final StringBuilder buffer = new StringBuilder();
int bufferStartIndex = 0;
boolean inValue;
String delegateStateId;
ParsingStateCallbackHandler delegate;
CommandLineFormat format;
@Override
public void enteredState(ParsingContext ctx) throws CommandFormatException {
final String id = ctx.getState().getId();
// System.out.println("entered " + id + " " + ctx.getCharacter());
if(delegate != null) {
delegate.enteredState(ctx);
return;
}
if(!inValue && ctx.getState().updateValueIndex()) {
bufferStartIndex = ctx.getLocation();
inValue = ctx.getState().lockValueIndex();
}
if (id.equals(PropertyListState.ID)) {
handler.propertyListStart(ctx.getLocation());
} else if ("ADDR_OP_SEP".equals(id)) {
handler.addressOperationSeparator(ctx.getLocation());
} else if ("NAME_VALUE_SEPARATOR".equals(id)) {
nameValueSeparator = ctx.getLocation();
if (buffer.length() > 0) {
name = buffer.toString().trim();
buffer.setLength(0);
}
} else if(id.equals(CommandState.ID)) {
format = CommandFormat.INSTANCE;
handler.setFormat(CommandFormat.INSTANCE);
} else if(id.equals(OperationRequestState.ID)) {
format = OperationFormat.INSTANCE;
handler.setFormat(OperationFormat.INSTANCE);
} else if (HeaderListState.ID.equals(id)) {
handler.headerListStart(ctx.getLocation());
}
}
@Override
public void leavingState(ParsingContext ctx) throws CommandFormatException {
final String id = ctx.getState().getId();
// System.out.println("leaving " + id + " " + ctx.getCharacter());
if(delegateStateId != null && !id.equals(delegateStateId)) {
delegate.leavingState(ctx);
return;
}
if (id.equals(PropertyListState.ID)) {
if (!ctx.isEndOfContent()) {
handler.propertyListEnd(ctx.getLocation());
}
} else if (ArgumentState.ID.equals(id)) {
if (this.name != null) {
final String value = buffer.toString().trim();
if (value.length() > 0) {
handler.property(this.name, value, bufferStartIndex/*nameValueSeparator*/);
} else {
handler.propertyName(bufferStartIndex, this.name);
if (nameValueSeparator != -1) {
handler.propertyNameValueSeparator(nameValueSeparator);
}
}
} else {
handler.propertyName(bufferStartIndex, buffer.toString().trim());
if (nameValueSeparator != -1) {
handler.propertyNameValueSeparator(nameValueSeparator);
}
}
if(!ctx.isEndOfContent() || format != null &&
// if the char is recognized as the separator but there was an error,
// at least atm, this means the character belongs to an unfinished/incomplete
// property value (e.g. a closing } or ], or " is missing) and it's not
// really a property separator.
format.isPropertySeparator(ctx.getCharacter()) && ctx.getError() == null) {
handler.propertySeparator(ctx.getLocation());
}
buffer.setLength(0);
name = null;
nameValueSeparator = -1;
} else if (ArgumentValueState.ID.equals(id)) {
if (name == null) {
handler.property(null, buffer.toString().trim(), bufferStartIndex);
buffer.setLength(0);
if(!ctx.isEndOfContent()) {
handler.propertySeparator(ctx.getLocation());
}
}
} else if (CommandNameState.ID.equals(id)) {
final String opName = buffer.toString().trim();
if(!opName.isEmpty()) {
handler.operationName(bufferStartIndex, opName);
}
buffer.setLength(0);
} else if (NodeState.ID.equals(id)) {
char ch = ctx.getCharacter();
if (buffer.length() == 0) {
if (ch == '/') {
handler.rootNode(bufferStartIndex);
handler.nodeSeparator(ctx.getLocation());
}
} else {
final String value = buffer.toString().trim();
if (ch == '=') {
handler.nodeType(bufferStartIndex, value);
handler.nodeTypeNameSeparator(ctx.getLocation());
} else if (ch == ':') {
handler.nodeName(bufferStartIndex, value);
} else {
if (".".equals(value)) {
// stay at the current address
} else if ("..".equals(value)) {
handler.parentNode(ctx.getLocation() - 2);
} else if (".type".equals(value)) {
handler.nodeType(ctx.getLocation() - 5);
} else {
if (ch == '/') {
if ("".equals(value)) {
handler.rootNode(ctx.getLocation());
} else {
handler.nodeName(bufferStartIndex, value);
}
} else {
handler.nodeTypeOrName(bufferStartIndex, value);
}
}
if (ch == '/' && value.charAt(value.length() - 1) != '/') {
handler.nodeSeparator(ctx.getLocation());
}
}
}
buffer.setLength(0);
} else if (HeaderListState.ID.equals(id)) {
if (!ctx.isEndOfContent()) {
handler.headerListEnd(ctx.getLocation());
}
} else if (HeaderNameState.ID.equals(id)) {
final String headerName = buffer.toString().trim();
if(!headerName.isEmpty()) {
this.name = headerName;
delegate = handler.headerName(bufferStartIndex, headerName);
if(delegate != null) {
delegateStateId = HeaderState.ID;
}
}
buffer.setLength(0);
} else if (HeaderValueState.ID.equals(id)) {
handler.header(name, buffer.toString(), bufferStartIndex);
buffer.setLength(0);
nameValueSeparator = -1;
} else if (HeaderState.ID.equals(id)) {
if(nameValueSeparator > 0) {
handler.headerNameValueSeparator(nameValueSeparator);
nameValueSeparator = -1;
}
this.name = null;
delegate = null;
delegateStateId = null;
if(!ctx.isEndOfContent() && ctx.getCharacter() == ';') {
handler.headerSeparator(ctx.getLocation());
}
} else if (OutputTargetState.ID.equals(id)) {
handler.outputTarget(bufferStartIndex, buffer.toString().trim());
buffer.setLength(0);
}
if(inValue && ctx.getState().lockValueIndex()) {
inValue = false;
}
}
@Override
public void character(ParsingContext ctx) throws CommandFormatException {
if(delegate != null) {
delegate.character(ctx);
return;
}
// System.out.println(ctx.getState().getId() + " '" + ctx.getCharacter() + "'");
buffer.append(ctx.getCharacter());
}
};
}
}
