functional/ContentInputStream.java · BinWoo/minio-java

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分支 3

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minio-java

functional

ContentInputStream.java

ContentInputStream.java 12.43 KB

/*
 * MinIO Java SDK for Amazon S3 Compatible Cloud Storage,
 * (C) 2017 MinIO, Inc.
 *
 * 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.
 */

import java.io.IOException;
import java.io.InputStream;

class ContentInputStream extends InputStream {
 private static final char[] CONTENT =
 new StringBuilder()
 .append("2v0hrugITxqVXRL3h1SDThnMj30h91Bx6HFyMmB92u1b2mX1XmYjAJVtLNnsN0YX")
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 .append("fR2bejNIkTFeyJIpPVoNz8QJMukQcqwlHxGGbB54XckrAZQ6byc8JGxQhktDcct0")
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 .append("Ypzxst41uLotmHr0Onpk1Rs2TD9Q0lwgoGYdjsYHWxe7B2htWj4z79aRkereiRaX")
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 .append("6Ycwpgqar9Jx7hMcZKKWA4aCCiPkjRfLSdDmPyBU8HDc3Sx3lIbfYmaa1Iq42np6")
 .append("bQ9Y26Cyd30scSeG6vLZM0OWaRqp7cgDYx6IGSMpgDlnQ28fs1r4kHTZKaHTAxbr")
 .append("fA78dpE8OifjzaCNFrqKdsTGYpeNEsn0u8oTJE2b9cqlIGf1udxeadYWxtrLmOjT")
 .append("FrwPG3WiT7Gxf7VJtD51XEMgewSfqDKuUlqefag3ECQE74eJwcXzhFwiiT6z1q3l")
 .append("3Wz8n0JDkW3bLS7E5Dq1YyHDOE2VTSzd0kENcw64oVZY2Ta1mJ9dSk0pizjeiRSU")
 .append("qvgubd4Hz93flD5SNzjtnBdimieB7UD7hj8LPvUzAPFhOqruqAEWMTtpF4wYPbH1")
 .toString()
 .toCharArray();
 private long size = 0;
 private long available = 0;
 private boolean isClosed = false;
 private int pos = 0;

public ContentInputStream(long size) {
 this.size = size;
 this.available = size;
 }

public int available() throws IOException {
 return (int) available;
 }

public void close() throws IOException {
 isClosed = true;
 }

public int read() throws IOException {
 if (isClosed) {
 throw new IOException("closed stream");
 }

if (available <= 0) {
 // Indicate EOF
 return -1;
 }

if (pos == CONTENT.length) {
 pos = 0;
 }

char c = CONTENT[pos];
 pos++;
 available--;

return (int) c;
 }

public long skip(long n) throws IOException {
 if (isClosed) {
 throw new IOException("closed stream");
 }

if (available <= 0) {
 throw new IOException("no more data");
 }

if (size - available < n) {
 n = size - available;
 available = 0;
 } else {
 available -= n;
 }

return n;
 }
}

一键复制编辑原始数据按行查看历史

Bala FA 提交于 2020年03月15日 04:07 +08:00 . upgrade to gradle v6.2.2 and use strict google java style (#863)

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/*
 * MinIO Java SDK for Amazon S3 Compatible Cloud Storage,
 * (C) 2017 MinIO, Inc.
 *
 * 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.
 */

import java.io.IOException;
import java.io.InputStream;

class ContentInputStream extends InputStream {
 private static final char[] CONTENT =
 new StringBuilder()
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 .append("SoW13DO1YyC33m8QZLa5LmrSe1jgZ8O2O3ey8qclyWx6f3XO02KpGNp6VGjBxA2t")
 .append("fR2bejNIkTFeyJIpPVoNz8QJMukQcqwlHxGGbB54XckrAZQ6byc8JGxQhktDcct0")
 .append("VCX8lU68lcRLlVKu7eyiMFPT9yxR9MB2wKCTq1J4Y5vzsqxT7W25ClR4LCSfcFIy")
 .append("2AbbJ3Z0jUrHrjhKS2jZmmqi1lwvVSEevKnPH5LMSQInvNzrfCW3iVCMzIzjoatT")
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 .append("grNxDMekuO2MvccYA6gRMjXhZF3fo8pr0wpKTee6BDx02I8WfdPacyOWuDCFCOu7")
 .append("RiyLa12sggCXE3p1XKircLds0NTw2ciAN3ZTFV0adckGmHtOUdSh7qQQ7g27TQY9")
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 .append("gnqEoevLWaUd9twjhxeVScVPHPD0Yq8xl1N7AmV080qR2cbaP1f6V2hMpfnVKdQc")
 .append("6Ycwpgqar9Jx7hMcZKKWA4aCCiPkjRfLSdDmPyBU8HDc3Sx3lIbfYmaa1Iq42np6")
 .append("bQ9Y26Cyd30scSeG6vLZM0OWaRqp7cgDYx6IGSMpgDlnQ28fs1r4kHTZKaHTAxbr")
 .append("fA78dpE8OifjzaCNFrqKdsTGYpeNEsn0u8oTJE2b9cqlIGf1udxeadYWxtrLmOjT")
 .append("FrwPG3WiT7Gxf7VJtD51XEMgewSfqDKuUlqefag3ECQE74eJwcXzhFwiiT6z1q3l")
 .append("3Wz8n0JDkW3bLS7E5Dq1YyHDOE2VTSzd0kENcw64oVZY2Ta1mJ9dSk0pizjeiRSU")
 .append("qvgubd4Hz93flD5SNzjtnBdimieB7UD7hj8LPvUzAPFhOqruqAEWMTtpF4wYPbH1")
 .toString()
 .toCharArray();
 private long size = 0;
 private long available = 0;
 private boolean isClosed = false;
 private int pos = 0;

 public ContentInputStream(long size) {
 this.size = size;
 this.available = size;
 }

 public int available() throws IOException {
 return (int) available;
 }

 public void close() throws IOException {
 isClosed = true;
 }

 public int read() throws IOException {
 if (isClosed) {
 throw new IOException("closed stream");
 }

 if (available <= 0) {
 // Indicate EOF
 return -1;
 }

 if (pos == CONTENT.length) {
 pos = 0;
 }

 char c = CONTENT[pos];
 pos++;
 available--;

 return (int) c;
 }

 public long skip(long n) throws IOException {
 if (isClosed) {
 throw new IOException("closed stream");
 }

 if (available <= 0) {
 throw new IOException("no more data");
 }

 if (size - available < n) {
 n = size - available;
 available = 0;
 } else {
 available -= n;
 }

 return n;
 }
}