Package org.openjdk.jmc.jdp.common
Class JDPPacket
- java.lang.Object
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- org.openjdk.jmc.jdp.common.JDPPacket
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- All Implemented Interfaces:
Discoverable
public final class JDPPacket extends java.lang.Object implements Discoverable
Class for delivering and retrieving the content.
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Field Summary
Fields Modifier and Type Field Description private java.util.Map<java.lang.String,java.lang.String>
decoded
private byte[]
encoded
(package private) static java.lang.String
KEY_DISCOVERABLE_ID
private static byte[]
MAGIC
private static int
PROTOCOL_VERSION
private java.lang.String
sessionId
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description private static boolean
checkMagic(byte[] data)
Checks if the first bytes in the byte buffer are the JDP magic bytes.private static void
checkVersion(int version)
Checks if this version bytes in the byte buffer are of a version that this class can decode.private static java.util.Map<java.lang.String,java.lang.String>
decode(byte[] data)
private static java.util.Map<java.lang.String,java.lang.String>
decodeHotSpot(byte[] data)
private static java.lang.String
decodeString(java.io.DataInputStream dis)
Reads a string from the byte buffer.private static byte[]
encode(java.util.Map<java.lang.String,java.lang.String> discoveryData)
boolean
equals(java.lang.Object obj)
byte[]
getDiscoveryDataAsByteArray()
java.util.Map<java.lang.String,java.lang.String>
getPayload()
java.lang.String
getSessionId()
int
hashCode()
java.lang.String
toString()
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Field Detail
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KEY_DISCOVERABLE_ID
static final java.lang.String KEY_DISCOVERABLE_ID
- See Also:
- Constant Field Values
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PROTOCOL_VERSION
private static final int PROTOCOL_VERSION
- See Also:
- Constant Field Values
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MAGIC
private static final byte[] MAGIC
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decoded
private final java.util.Map<java.lang.String,java.lang.String> decoded
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encoded
private final byte[] encoded
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sessionId
private final java.lang.String sessionId
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Constructor Detail
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JDPPacket
public JDPPacket(java.util.Map<java.lang.String,java.lang.String> discoveryData)
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JDPPacket
public JDPPacket(byte[] data) throws CodingException
- Throws:
CodingException
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Method Detail
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getPayload
public java.util.Map<java.lang.String,java.lang.String> getPayload()
- Specified by:
getPayload
in interfaceDiscoverable
- Returns:
- the discovery payload.
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getSessionId
public java.lang.String getSessionId()
- Specified by:
getSessionId
in interfaceDiscoverable
- Returns:
- the identifier uniquely identifying the discoverable session. A new session UUID is generated whenever the JDP server is started.
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getDiscoveryDataAsByteArray
public byte[] getDiscoveryDataAsByteArray()
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encode
private static byte[] encode(java.util.Map<java.lang.String,java.lang.String> discoveryData) throws CodingException
- Throws:
CodingException
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decode
private static java.util.Map<java.lang.String,java.lang.String> decode(byte[] data) throws CodingException
- Throws:
CodingException
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decodeHotSpot
private static java.util.Map<java.lang.String,java.lang.String> decodeHotSpot(byte[] data) throws java.io.IOException
- Throws:
java.io.IOException
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decodeString
private static java.lang.String decodeString(java.io.DataInputStream dis) throws java.io.IOException
Reads a string from the byte buffer.- Parameters:
data
- the byte buffer to read from.size
- the size to read.offset
- the position to read from.- Returns:
- the resulting String.
- Throws:
java.io.IOException
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checkMagic
private static boolean checkMagic(byte[] data)
Checks if the first bytes in the byte buffer are the JDP magic bytes.- Parameters:
data
- the byte buffer to check.- Returns:
- true if the first bytes match, false otherwise.
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checkVersion
private static void checkVersion(int version) throws CodingException
Checks if this version bytes in the byte buffer are of a version that this class can decode.- Throws:
CodingException
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hashCode
public int hashCode()
- Overrides:
hashCode
in classjava.lang.Object
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equals
public boolean equals(java.lang.Object obj)
- Overrides:
equals
in classjava.lang.Object
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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