58 lines
1.4 KiB
Java
58 lines
1.4 KiB
Java
/*
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* Copyright 2010 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package java.io;
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public abstract class InputStream {
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public abstract int read() throws IOException;
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public int read(byte[]buf, int start, int len) throws IOException {
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int end = start + len;
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for (int i = start; i < end; i++) {
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int r = read();
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if (r == -1) {
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return i == start ? -1 : i - start;
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}
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buf[i] = (byte) r;
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}
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return len;
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}
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public int read(byte[] buf) throws IOException {
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return read(buf, 0, buf.length);
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}
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public void close() throws IOException {
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}
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public int available() throws IOException
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{
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return 0;
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}
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public void mark(int readAheadLimit){
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}
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public boolean markSupported() {
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return false;
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}
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public long skip(long n) throws IOException, IllegalArgumentException { return 0; }
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public void reset() throws IOException {}
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}
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