19 changed files with 392 additions and 281 deletions
@ -0,0 +1,59 @@ |
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package com.xiaowuler.radarresolver.custom; |
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import java.io.IOException; |
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/** |
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* @describe: 自定义读取字节流 |
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* @author: xiaowuler |
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* @createTime: 2022-03-17 17:07 |
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*/ |
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public interface ICustomInputStream { |
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/** |
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* 转换 int |
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* @return |
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* @throws IOException |
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*/ |
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int readInt() throws IOException; |
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/** |
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* 转换 short |
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* @return |
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* @throws IOException |
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*/ |
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short readShort() throws IOException; |
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/** |
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* 转换 long |
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* @return |
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* @throws IOException |
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*/ |
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long readLong() throws IOException; |
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/** |
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* 转换 float |
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* @return |
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* @throws IOException |
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*/ |
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float readFloat() throws IOException; |
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/** |
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* 读取 指定个数 字节 |
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* @param len |
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* @return |
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* @throws IOException |
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*/ |
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byte[] readNBytes(int len) throws IOException; |
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/** |
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* 判断是否存在字节 |
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* @return |
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* @throws IOException |
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*/ |
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int available() throws IOException; |
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/** |
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* 释放资源 |
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* @throws IOException |
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*/ |
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void close() throws IOException; |
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} |
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@ -0,0 +1,116 @@ |
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package com.xiaowuler.radarresolver.custom.impl; |
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import java.io.*; |
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import java.lang.reflect.InvocationTargetException; |
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import java.nio.ByteBuffer; |
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import java.nio.ByteOrder; |
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import java.util.Locale; |
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import java.util.Objects; |
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import org.python.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream; |
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import com.xiaowuler.radarresolver.custom.ICustomInputStream; |
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import com.xiaowuler.radarresolver.util.ByteUtils; |
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/** |
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* @describe: 自定义 雷达 输入流 |
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* Big-Endian 和 Little-Endian 字节排序 |
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* * Big-Endian 一个Word中的高位的Byte放在内存中这个Word区域的低地址处。 |
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* * Little-Endian 一个Word中的低位的Byte放在内存中这个Word区域的低地址处。 |
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* * python写入的二进制文件和java二进制文件编码读取顺序不同，java 是从左到右编码，python是从右到左 |
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* @author: xiaowuler |
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* @createTime: 2022-03-18 09:09 |
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*/ |
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public class CustomRadarInputStream implements ICustomInputStream, Closeable{ |
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private static final String BZIP_SUFFIX = "bz2"; |
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private static final String BIN_SUFFIX = "bin"; |
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private InputStream inputStream; |
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private FileInputStream fileInputStream; |
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public CustomRadarInputStream(String filepath) throws FileNotFoundException, InvocationTargetException, NoSuchMethodException, InstantiationException, IllegalAccessException { |
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String fileSuffix = filepath.substring(filepath.lastIndexOf(".") + 1).trim().toLowerCase(Locale.ROOT); |
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switch (fileSuffix){ |
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case BIN_SUFFIX: |
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customRadarInputStream(filepath, DataInputStream.class); |
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break; |
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case BZIP_SUFFIX: |
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customRadarInputStream(filepath, BZip2CompressorInputStream.class); |
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default: |
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throw new IllegalAccessException("无效的文件格式类型"); |
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} |
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} |
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private <T extends InputStream> void customRadarInputStream(String filepath, Class<T> clazz) throws NoSuchMethodException, FileNotFoundException, InvocationTargetException, InstantiationException, IllegalAccessException { |
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fileInputStream = new FileInputStream(filepath); |
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inputStream = clazz.getConstructor(InputStream.class).newInstance(fileInputStream); |
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} |
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@Override |
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public int readInt() throws IOException { |
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int ch1 = inputStream.read(); |
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int ch2 = inputStream.read(); |
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int ch3 = inputStream.read(); |
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int ch4 = inputStream.read(); |
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if ((ch1 | ch2 | ch3 | ch4) < 0) { |
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throw new EOFException(); |
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} |
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return ((ch1 << 0) + (ch2 << 8) + (ch3 << 16) + (ch4 << 24)); |
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} |
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/** |
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* Big-Endian 和 Little-Endian 字节排序 |
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* |
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* Big-Endian 一个Word中的高位的Byte放在内存中这个Word区域的低地址处。 |
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* Little-Endian 一个Word中的低位的Byte放在内存中这个Word区域的低地址处。 |
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* @return |
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* @throws IOException |
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*/ |
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@Override |
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public short readShort() throws IOException{ |
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byte[] bytes = inputStream.readNBytes(2); |
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return ByteUtils.bytes2Short(bytes); |
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} |
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@Override |
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public long readLong() throws IOException{ |
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byte[] bytes = inputStream.readNBytes(8); |
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ByteBuffer byteBuffer = ByteBuffer.wrap(bytes); |
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byteBuffer.order(ByteOrder.LITTLE_ENDIAN); |
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return byteBuffer.getLong(); |
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} |
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@Override |
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public float readFloat() throws IOException { |
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return Float.intBitsToFloat(readInt()); |
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} |
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@Override |
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public byte[] readNBytes(int len) throws IOException{ |
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return inputStream.readNBytes(len); |
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} |
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@Override |
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public int available() throws IOException { |
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return inputStream.available(); |
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} |
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@Override |
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public void close() { |
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if (Objects.nonNull(fileInputStream)){ |
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try { |
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fileInputStream.close(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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if (Objects.nonNull(inputStream)){ |
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try { |
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inputStream.close(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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} |
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@ -1,4 +1,4 @@ |
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package com.xiaowuler.radarresolver.customer; |
package com.xiaowuler.radarresolver.custom.impl; |
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import java.io.DataOutputStream; |
import java.io.DataOutputStream; |
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import java.io.FilterOutputStream; |
import java.io.FilterOutputStream; |
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@ -1,89 +0,0 @@ |
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package com.xiaowuler.radarresolver.customer; |
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import java.io.*; |
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import java.nio.ByteBuffer; |
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import java.nio.ByteOrder; |
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import lombok.Data; |
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import com.xiaowuler.radarresolver.util.ByteUtils; |
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/** |
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* @describe: Big-Endian 和 Little-Endian 字节排序 |
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* Big-Endian 一个Word中的高位的Byte放在内存中这个Word区域的低地址处。 |
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* Little-Endian 一个Word中的低位的Byte放在内存中这个Word区域的低地址处。 |
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* python写入的二进制文件和java二进制文件编码读取顺序不同，java 是从左到右编码，python是从右到左 |
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* @author: xiaowuler |
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* @createTime: 2021-05-19 09:01 |
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*/ |
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public class CustomerDataInputStream extends DataInputStream { |
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// private int pos = 0;
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/** |
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* Creates a DataInputStream that uses the specified |
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* underlying InputStream. |
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* |
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* @param in the specified input stream |
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*/ |
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public CustomerDataInputStream(InputStream in) { |
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super(in); |
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} |
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public final int readCInt() throws IOException { |
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// addPos(4);
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int ch1 = in.read(); |
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int ch2 = in.read(); |
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int ch3 = in.read(); |
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int ch4 = in.read(); |
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if ((ch1 | ch2 | ch3 | ch4) < 0) { |
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throw new EOFException(); |
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} |
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return ((ch1 << 0) + (ch2 << 8) + (ch3 << 16) + (ch4 << 24)); |
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} |
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/** |
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* Big-Endian 和 Little-Endian 字节排序 |
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* |
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* Big-Endian 一个Word中的高位的Byte放在内存中这个Word区域的低地址处。 |
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* Little-Endian 一个Word中的低位的Byte放在内存中这个Word区域的低地址处。 |
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* @return |
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* @throws IOException |
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*/ |
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public final short readCShort() throws IOException{ |
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// addPos(2);
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byte[] bytes = in.readNBytes(2); |
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return ByteUtils.bytes2Short(bytes); |
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} |
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public final long readCLong() throws IOException{ |
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// addPos(8);
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byte[] bytes = in.readNBytes(8); |
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ByteBuffer byteBuffer = ByteBuffer.wrap(bytes); |
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byteBuffer.order(ByteOrder.LITTLE_ENDIAN); |
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return byteBuffer.getLong(); |
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} |
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public final float readCFloat() throws IOException { |
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// addPos(4);
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return Float.intBitsToFloat(readCInt()); |
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} |
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@Override |
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public byte[] readNBytes(int len) throws IOException{ |
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// addPos(len);
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return super.readNBytes(len); |
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} |
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public byte readCByte() throws IOException{ |
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// addPos(1);
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return super.readByte(); |
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} |
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// public int getPos() {
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// return pos;
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// }
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//
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// private synchronized void addPos(int value) {
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// this.pos += value;
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// }
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} |
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@ -0,0 +1,24 @@ |
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package com.xiaowuler.radarresolver.exceptions; |
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/** |
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* @describe: 雷达读取异常 |
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* @author: xiaowuler |
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* @createTime: 2022-03-18 09:47 |
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*/ |
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public class RadarReadException extends Exception { |
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public RadarReadException(){ |
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super(); |
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} |
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public RadarReadException(String message){ |
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super(message); |
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} |
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public RadarReadException(String message, Throwable cause){ |
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super(message, cause); |
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} |
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public RadarReadException(Throwable cause){ |
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super(cause); |
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} |
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} |
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@ -0,0 +1,27 @@ |
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package com.xiaowuler.radarresolver.weather.enums; |
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import lombok.AllArgsConstructor; |
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import lombok.Data; |
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import lombok.Getter; |
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import lombok.Setter; |
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/** |
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* @describe: 雷达文件枚举 |
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* @author: xiaowuler |
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* @createTime: 2022-03-18 09:19 |
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*/ |
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@AllArgsConstructor |
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public enum RadarSuffixEnum { |
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/** |
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* 二进制 文件 后缀名 |
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*/ |
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BIN(".bin"), |
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/** |
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* 压缩文件 后缀名 |
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*/ |
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BZIP2(".bz2"); |
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@Getter |
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private final String type; |
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} |
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Loading…
Reference in new issue