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FIX/SBE - OSI layer 6 presentation for encoding and decoding application messages in binary format for low-latency applications.
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/* Generated SBE (Simple Binary Encoding) message codec. */
package uk.co.real_logic.sbe.ir.generated;
import org.agrona.MutableDirectBuffer;
import org.agrona.DirectBuffer;
/**
* Frame Header for start of encoding IR.
*/
@SuppressWarnings("all")
public final class FrameCodecEncoder
{
private static final boolean ENABLE_BOUNDS_CHECKS = !Boolean.getBoolean("agrona.disable.bounds.checks");
private static final boolean SBE_ENABLE_IR_PRECEDENCE_CHECKS = Boolean.parseBoolean(System.getProperty(
"sbe.enable.ir.precedence.checks",
Boolean.toString(ENABLE_BOUNDS_CHECKS)));
/**
* The states in which a encoder/decoder/codec can live.
*
* The state machine diagram below, encoded in the dot language, describes
* the valid state transitions according to the order in which fields may be
* accessed safely. Tools such as PlantUML and Graphviz can render it.
*
*
{@code
* digraph G {
* NOT_WRAPPED -> V0_BLOCK [label=" wrap(version=0) "];
* V0_BLOCK -> V0_BLOCK [label=" irId(?) "];
* V0_BLOCK -> V0_BLOCK [label=" irVersion(?) "];
* V0_BLOCK -> V0_BLOCK [label=" schemaVersion(?) "];
* V0_BLOCK -> V0_BLOCK [label=" packageNameLength() "];
* V0_BLOCK -> V0_PACKAGENAME_DONE [label=" packageName(?) "];
* V0_PACKAGENAME_DONE -> V0_PACKAGENAME_DONE [label=" namespaceNameLength() "];
* V0_PACKAGENAME_DONE -> V0_NAMESPACENAME_DONE [label=" namespaceName(?) "];
* V0_NAMESPACENAME_DONE -> V0_NAMESPACENAME_DONE [label=" semanticVersionLength() "];
* V0_NAMESPACENAME_DONE -> V0_SEMANTICVERSION_DONE [label=" semanticVersion(?) "];
* }
* }
*/
private static class CodecStates
{
private static final int NOT_WRAPPED = 0;
private static final int V0_BLOCK = 1;
private static final int V0_PACKAGENAME_DONE = 2;
private static final int V0_NAMESPACENAME_DONE = 3;
private static final int V0_SEMANTICVERSION_DONE = 4;
private static final String[] STATE_NAME_LOOKUP =
{
"NOT_WRAPPED",
"V0_BLOCK",
"V0_PACKAGENAME_DONE",
"V0_NAMESPACENAME_DONE",
"V0_SEMANTICVERSION_DONE",
};
private static final String[] STATE_TRANSITIONS_LOOKUP =
{
"\"wrap(version=0)\"",
"\"irId(?)\", \"irVersion(?)\", \"schemaVersion(?)\", \"packageNameLength()\", \"packageName(?)\"",
"\"namespaceNameLength()\", \"namespaceName(?)\"",
"\"semanticVersionLength()\", \"semanticVersion(?)\"",
"",
};
private static String name(final int state)
{
return STATE_NAME_LOOKUP[state];
}
private static String transitions(final int state)
{
return STATE_TRANSITIONS_LOOKUP[state];
}
}
private int codecState = CodecStates.NOT_WRAPPED;
private int codecState()
{
return codecState;
}
private void codecState(int newState)
{
codecState = newState;
}
public static final int BLOCK_LENGTH = 12;
public static final int TEMPLATE_ID = 1;
public static final int SCHEMA_ID = 1;
public static final int SCHEMA_VERSION = 0;
public static final String SEMANTIC_VERSION = "";
public static final java.nio.ByteOrder BYTE_ORDER = java.nio.ByteOrder.LITTLE_ENDIAN;
private final FrameCodecEncoder parentMessage = this;
private MutableDirectBuffer buffer;
private int offset;
private int limit;
public int sbeBlockLength()
{
return BLOCK_LENGTH;
}
public int sbeTemplateId()
{
return TEMPLATE_ID;
}
public int sbeSchemaId()
{
return SCHEMA_ID;
}
public int sbeSchemaVersion()
{
return SCHEMA_VERSION;
}
public String sbeSemanticType()
{
return "";
}
public MutableDirectBuffer buffer()
{
return buffer;
}
public int offset()
{
return offset;
}
public FrameCodecEncoder wrap(final MutableDirectBuffer buffer, final int offset)
{
if (buffer != this.buffer)
{
this.buffer = buffer;
}
this.offset = offset;
limit(offset + BLOCK_LENGTH);
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
codecState(CodecStates.V0_BLOCK);
}
return this;
}
public FrameCodecEncoder wrapAndApplyHeader(
final MutableDirectBuffer buffer, final int offset, final MessageHeaderEncoder headerEncoder)
{
headerEncoder
.wrap(buffer, offset)
.blockLength(BLOCK_LENGTH)
.templateId(TEMPLATE_ID)
.schemaId(SCHEMA_ID)
.version(SCHEMA_VERSION);
return wrap(buffer, offset + MessageHeaderEncoder.ENCODED_LENGTH);
}
public int encodedLength()
{
return limit - offset;
}
public int limit()
{
return limit;
}
public void limit(final int limit)
{
this.limit = limit;
}
public static int irIdId()
{
return 1;
}
public static int irIdSinceVersion()
{
return 0;
}
public static int irIdEncodingOffset()
{
return 0;
}
public static int irIdEncodingLength()
{
return 4;
}
public static String irIdMetaAttribute(final MetaAttribute metaAttribute)
{
if (MetaAttribute.PRESENCE == metaAttribute)
{
return "required";
}
return "";
}
private void onIrIdAccessed()
{
if (codecState() == CodecStates.NOT_WRAPPED)
{
throw new IllegalStateException("Illegal field access order. " +
"Cannot access field \"irId\" in state: " + CodecStates.name(codecState()) +
". Expected one of these transitions: [" + CodecStates.transitions(codecState()) +
"]. Please see the diagram in the Javadoc of the class FrameCodecEncoder#CodecStates.");
}
}
public static int irIdNullValue()
{
return -2147483648;
}
public static int irIdMinValue()
{
return -2147483647;
}
public static int irIdMaxValue()
{
return 2147483647;
}
public FrameCodecEncoder irId(final int value)
{
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onIrIdAccessed();
}
buffer.putInt(offset + 0, value, BYTE_ORDER);
return this;
}
public static int irVersionId()
{
return 2;
}
public static int irVersionSinceVersion()
{
return 0;
}
public static int irVersionEncodingOffset()
{
return 4;
}
public static int irVersionEncodingLength()
{
return 4;
}
public static String irVersionMetaAttribute(final MetaAttribute metaAttribute)
{
if (MetaAttribute.PRESENCE == metaAttribute)
{
return "required";
}
return "";
}
private void onIrVersionAccessed()
{
if (codecState() == CodecStates.NOT_WRAPPED)
{
throw new IllegalStateException("Illegal field access order. " +
"Cannot access field \"irVersion\" in state: " + CodecStates.name(codecState()) +
". Expected one of these transitions: [" + CodecStates.transitions(codecState()) +
"]. Please see the diagram in the Javadoc of the class FrameCodecEncoder#CodecStates.");
}
}
public static int irVersionNullValue()
{
return -2147483648;
}
public static int irVersionMinValue()
{
return -2147483647;
}
public static int irVersionMaxValue()
{
return 2147483647;
}
public FrameCodecEncoder irVersion(final int value)
{
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onIrVersionAccessed();
}
buffer.putInt(offset + 4, value, BYTE_ORDER);
return this;
}
public static int schemaVersionId()
{
return 3;
}
public static int schemaVersionSinceVersion()
{
return 0;
}
public static int schemaVersionEncodingOffset()
{
return 8;
}
public static int schemaVersionEncodingLength()
{
return 4;
}
public static String schemaVersionMetaAttribute(final MetaAttribute metaAttribute)
{
if (MetaAttribute.PRESENCE == metaAttribute)
{
return "required";
}
return "";
}
private void onSchemaVersionAccessed()
{
if (codecState() == CodecStates.NOT_WRAPPED)
{
throw new IllegalStateException("Illegal field access order. " +
"Cannot access field \"schemaVersion\" in state: " + CodecStates.name(codecState()) +
". Expected one of these transitions: [" + CodecStates.transitions(codecState()) +
"]. Please see the diagram in the Javadoc of the class FrameCodecEncoder#CodecStates.");
}
}
public static int schemaVersionNullValue()
{
return -2147483648;
}
public static int schemaVersionMinValue()
{
return -2147483647;
}
public static int schemaVersionMaxValue()
{
return 2147483647;
}
public FrameCodecEncoder schemaVersion(final int value)
{
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onSchemaVersionAccessed();
}
buffer.putInt(offset + 8, value, BYTE_ORDER);
return this;
}
public static int packageNameId()
{
return 4;
}
public static String packageNameCharacterEncoding()
{
return java.nio.charset.StandardCharsets.UTF_8.name();
}
public static String packageNameMetaAttribute(final MetaAttribute metaAttribute)
{
if (MetaAttribute.PRESENCE == metaAttribute)
{
return "required";
}
return "";
}
public static int packageNameHeaderLength()
{
return 2;
}
private void onPackageNameAccessed()
{
switch (codecState())
{
case CodecStates.V0_BLOCK:
codecState(CodecStates.V0_PACKAGENAME_DONE);
break;
default:
throw new IllegalStateException("Illegal field access order. " +
"Cannot access field \"packageName\" in state: " + CodecStates.name(codecState()) +
". Expected one of these transitions: [" + CodecStates.transitions(codecState()) +
"]. Please see the diagram in the Javadoc of the class FrameCodecEncoder#CodecStates.");
}
}
public FrameCodecEncoder putPackageName(final DirectBuffer src, final int srcOffset, final int length)
{
if (length > 65534)
{
throw new IllegalStateException("length > maxValue for type: " + length);
}
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onPackageNameAccessed();
}
final int headerLength = 2;
final int limit = parentMessage.limit();
parentMessage.limit(limit + headerLength + length);
buffer.putShort(limit, (short)length, BYTE_ORDER);
buffer.putBytes(limit + headerLength, src, srcOffset, length);
return this;
}
public FrameCodecEncoder putPackageName(final byte[] src, final int srcOffset, final int length)
{
if (length > 65534)
{
throw new IllegalStateException("length > maxValue for type: " + length);
}
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onPackageNameAccessed();
}
final int headerLength = 2;
final int limit = parentMessage.limit();
parentMessage.limit(limit + headerLength + length);
buffer.putShort(limit, (short)length, BYTE_ORDER);
buffer.putBytes(limit + headerLength, src, srcOffset, length);
return this;
}
public FrameCodecEncoder packageName(final String value)
{
final byte[] bytes = (null == value || value.isEmpty()) ? org.agrona.collections.ArrayUtil.EMPTY_BYTE_ARRAY : value.getBytes(java.nio.charset.StandardCharsets.UTF_8);
final int length = bytes.length;
if (length > 65534)
{
throw new IllegalStateException("length > maxValue for type: " + length);
}
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onPackageNameAccessed();
}
final int headerLength = 2;
final int limit = parentMessage.limit();
parentMessage.limit(limit + headerLength + length);
buffer.putShort(limit, (short)length, BYTE_ORDER);
buffer.putBytes(limit + headerLength, bytes, 0, length);
return this;
}
public static int namespaceNameId()
{
return 5;
}
public static String namespaceNameCharacterEncoding()
{
return java.nio.charset.StandardCharsets.UTF_8.name();
}
public static String namespaceNameMetaAttribute(final MetaAttribute metaAttribute)
{
if (MetaAttribute.PRESENCE == metaAttribute)
{
return "required";
}
return "";
}
public static int namespaceNameHeaderLength()
{
return 2;
}
private void onNamespaceNameAccessed()
{
switch (codecState())
{
case CodecStates.V0_PACKAGENAME_DONE:
codecState(CodecStates.V0_NAMESPACENAME_DONE);
break;
default:
throw new IllegalStateException("Illegal field access order. " +
"Cannot access field \"namespaceName\" in state: " + CodecStates.name(codecState()) +
". Expected one of these transitions: [" + CodecStates.transitions(codecState()) +
"]. Please see the diagram in the Javadoc of the class FrameCodecEncoder#CodecStates.");
}
}
public FrameCodecEncoder putNamespaceName(final DirectBuffer src, final int srcOffset, final int length)
{
if (length > 65534)
{
throw new IllegalStateException("length > maxValue for type: " + length);
}
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onNamespaceNameAccessed();
}
final int headerLength = 2;
final int limit = parentMessage.limit();
parentMessage.limit(limit + headerLength + length);
buffer.putShort(limit, (short)length, BYTE_ORDER);
buffer.putBytes(limit + headerLength, src, srcOffset, length);
return this;
}
public FrameCodecEncoder putNamespaceName(final byte[] src, final int srcOffset, final int length)
{
if (length > 65534)
{
throw new IllegalStateException("length > maxValue for type: " + length);
}
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onNamespaceNameAccessed();
}
final int headerLength = 2;
final int limit = parentMessage.limit();
parentMessage.limit(limit + headerLength + length);
buffer.putShort(limit, (short)length, BYTE_ORDER);
buffer.putBytes(limit + headerLength, src, srcOffset, length);
return this;
}
public FrameCodecEncoder namespaceName(final String value)
{
final byte[] bytes = (null == value || value.isEmpty()) ? org.agrona.collections.ArrayUtil.EMPTY_BYTE_ARRAY : value.getBytes(java.nio.charset.StandardCharsets.UTF_8);
final int length = bytes.length;
if (length > 65534)
{
throw new IllegalStateException("length > maxValue for type: " + length);
}
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onNamespaceNameAccessed();
}
final int headerLength = 2;
final int limit = parentMessage.limit();
parentMessage.limit(limit + headerLength + length);
buffer.putShort(limit, (short)length, BYTE_ORDER);
buffer.putBytes(limit + headerLength, bytes, 0, length);
return this;
}
public static int semanticVersionId()
{
return 6;
}
public static String semanticVersionCharacterEncoding()
{
return java.nio.charset.StandardCharsets.UTF_8.name();
}
public static String semanticVersionMetaAttribute(final MetaAttribute metaAttribute)
{
if (MetaAttribute.PRESENCE == metaAttribute)
{
return "required";
}
return "";
}
public static int semanticVersionHeaderLength()
{
return 2;
}
private void onSemanticVersionAccessed()
{
switch (codecState())
{
case CodecStates.V0_NAMESPACENAME_DONE:
codecState(CodecStates.V0_SEMANTICVERSION_DONE);
break;
default:
throw new IllegalStateException("Illegal field access order. " +
"Cannot access field \"semanticVersion\" in state: " + CodecStates.name(codecState()) +
". Expected one of these transitions: [" + CodecStates.transitions(codecState()) +
"]. Please see the diagram in the Javadoc of the class FrameCodecEncoder#CodecStates.");
}
}
public FrameCodecEncoder putSemanticVersion(final DirectBuffer src, final int srcOffset, final int length)
{
if (length > 65534)
{
throw new IllegalStateException("length > maxValue for type: " + length);
}
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onSemanticVersionAccessed();
}
final int headerLength = 2;
final int limit = parentMessage.limit();
parentMessage.limit(limit + headerLength + length);
buffer.putShort(limit, (short)length, BYTE_ORDER);
buffer.putBytes(limit + headerLength, src, srcOffset, length);
return this;
}
public FrameCodecEncoder putSemanticVersion(final byte[] src, final int srcOffset, final int length)
{
if (length > 65534)
{
throw new IllegalStateException("length > maxValue for type: " + length);
}
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onSemanticVersionAccessed();
}
final int headerLength = 2;
final int limit = parentMessage.limit();
parentMessage.limit(limit + headerLength + length);
buffer.putShort(limit, (short)length, BYTE_ORDER);
buffer.putBytes(limit + headerLength, src, srcOffset, length);
return this;
}
public FrameCodecEncoder semanticVersion(final String value)
{
final byte[] bytes = (null == value || value.isEmpty()) ? org.agrona.collections.ArrayUtil.EMPTY_BYTE_ARRAY : value.getBytes(java.nio.charset.StandardCharsets.UTF_8);
final int length = bytes.length;
if (length > 65534)
{
throw new IllegalStateException("length > maxValue for type: " + length);
}
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
onSemanticVersionAccessed();
}
final int headerLength = 2;
final int limit = parentMessage.limit();
parentMessage.limit(limit + headerLength + length);
buffer.putShort(limit, (short)length, BYTE_ORDER);
buffer.putBytes(limit + headerLength, bytes, 0, length);
return this;
}
public String toString()
{
if (null == buffer)
{
return "";
}
return appendTo(new StringBuilder()).toString();
}
public StringBuilder appendTo(final StringBuilder builder)
{
if (null == buffer)
{
return builder;
}
final FrameCodecDecoder decoder = new FrameCodecDecoder();
decoder.wrap(buffer, offset, BLOCK_LENGTH, SCHEMA_VERSION);
return decoder.appendTo(builder);
}
public void checkEncodingIsComplete()
{
if (SBE_ENABLE_IR_PRECEDENCE_CHECKS)
{
switch (codecState)
{
case CodecStates.V0_SEMANTICVERSION_DONE:
return;
default:
throw new IllegalStateException("Not fully encoded, current state: " +
CodecStates.name(codecState) + ", allowed transitions: " +
CodecStates.transitions(codecState));
}
}
}
}
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