/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.tools.common.toolspec.parser;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.cxf.common.logging.LogUtils;
public class TokenInputStream {
private static final Logger LOG = LogUtils.getL7dLogger(TokenInputStream.class);
private final String[] tokens;
private int pos;
public TokenInputStream(String[] t) {
this.tokens = t;
}
public String read() {
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Reading token " + tokens[pos]);
}
return tokens[pos++];
}
public String readNext() {
return read(pos++);
}
public String read(int position) {
if (position < 0) {
pos = 0;
}
if (position > tokens.length) {
pos = tokens.length - 1;
}
return tokens[pos];
}
public String readPre() {
if (pos != 0) {
pos--;
}
return tokens[pos];
}
public String peek() {
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Peeking token " + tokens[pos]);
}
return tokens[pos];
}
public String peekPre() {
if (pos == 0) {
return tokens[pos];
}
return tokens[pos - 1];
}
public String peek(int position) {
if (position < 0) {
return tokens[0];
}
if (position > tokens.length) {
return tokens[tokens.length - 1];
}
return tokens[position];
}
public int getPosition() {
return pos;
}
public void setPosition(int p) {
this.pos = p;
}
public int available() {
return tokens.length - pos;
}
public boolean hasNext() {
return available() > 1;
}
public boolean isOutOfBound() {
return pos >= tokens.length;
}
public String toString() {
StringBuilder sb = new StringBuilder("[ ");
for (int i = pos; i < tokens.length; i++) {
sb.append(tokens[i]);
if (i < tokens.length - 1) {
sb.append(" ");
}
}
sb.append(" ]");
return sb.toString();
}
}