1 | /*
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2 | * Copyright 2003-2004 The Apache Software Foundation
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3 | *
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4 | * Licensed under the Apache License, Version 2.0 (the "License");
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5 | * you may not use this file except in compliance with the License.
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6 | * You may obtain a copy of the License at
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7 | *
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8 | * http://www.apache.org/licenses/LICENSE-2.0
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9 | *
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10 | * Unless required by applicable law or agreed to in writing, software
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11 | * distributed under the License is distributed on an "AS IS" BASIS,
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 | * See the License for the specific language governing permissions and
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14 | * limitations under the License.
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15 | *
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16 | */
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17 | package org.apache.tools.ant.util;
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18 |
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19 | import java.io.FilterInputStream;
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20 | import java.io.IOException;
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21 | import java.io.InputStream;
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22 |
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23 | /**
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24 | * Class that can be used to wrap <tt>System.in</tt>
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25 | * without getting anxious about any client closing the stream.
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26 | *
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27 | * <p>
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28 | * In code-language it means that it is not necessary to do:
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29 | * <pre>
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30 | * if (out != System.in) {
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31 | * in.close();
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32 | * }
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33 | * </pre>
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34 | * </p>
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35 | *
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36 | * @since Ant 1.6
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37 | */
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38 | public class KeepAliveInputStream extends FilterInputStream {
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39 |
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40 | public KeepAliveInputStream(InputStream in) {
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41 | super(in);
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42 | }
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43 |
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44 | /** this method does nothing */
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45 | public void close() throws IOException {
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46 | //
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47 | }
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48 | }
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49 |
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