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org.apache.hadoop.record.compiler.JRecord Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.hadoop.record.compiler;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.*;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
/**
* @deprecated Replaced by Avro .
*/
@Deprecated
@InterfaceAudience.Public
@InterfaceStability.Stable
public class JRecord extends JCompType {
class JavaRecord extends JavaCompType {
private String fullName;
private String name;
private String module;
private ArrayList> fields =
new ArrayList>();
JavaRecord(String name, ArrayList> flist) {
super(name, "Record", name, "TypeID.RIOType.STRUCT");
this.fullName = name;
int idx = name.lastIndexOf('.');
this.name = name.substring(idx+1);
this.module = name.substring(0, idx);
for (Iterator> iter = flist.iterator(); iter.hasNext();) {
JField f = iter.next();
fields.add(new JField(f.getName(), f.getType().getJavaType()));
}
}
@Override
String getTypeIDObjectString() {
return "new org.apache.hadoop.record.meta.StructTypeID(" +
fullName + ".getTypeInfo())";
}
@Override
void genSetRTIFilter(CodeBuffer cb, Map nestedStructMap) {
// ignore, if we'ev already set the type filter for this record
if (!nestedStructMap.containsKey(fullName)) {
// we set the RTI filter here
cb.append(fullName + ".setTypeFilter(rti.getNestedStructTypeInfo(\""+
name + "\"));\n");
nestedStructMap.put(fullName, null);
}
}
// for each typeInfo in the filter, we see if there's a similar one in the record.
// Since we store typeInfos in ArrayLists, thsi search is O(n squared). We do it faster
// if we also store a map (of TypeInfo to index), but since setupRtiFields() is called
// only once when deserializing, we're sticking with the former, as the code is easier.
void genSetupRtiFields(CodeBuffer cb) {
cb.append("private static void setupRtiFields()\n{\n");
cb.append("if (null == " + Consts.RTI_FILTER + ") return;\n");
cb.append("// we may already have done this\n");
cb.append("if (null != " + Consts.RTI_FILTER_FIELDS + ") return;\n");
cb.append("int " + Consts.RIO_PREFIX + "i, " + Consts.RIO_PREFIX + "j;\n");
cb.append(Consts.RTI_FILTER_FIELDS + " = new int [" +
Consts.RIO_PREFIX + "rtiFilter.getFieldTypeInfos().size()];\n");
cb.append("for (" + Consts.RIO_PREFIX + "i=0; " + Consts.RIO_PREFIX + "i<"+
Consts.RTI_FILTER_FIELDS + ".length; " + Consts.RIO_PREFIX + "i++) {\n");
cb.append(Consts.RTI_FILTER_FIELDS + "[" + Consts.RIO_PREFIX + "i] = 0;\n");
cb.append("}\n");
cb.append("java.util.Iterator " + Consts.RIO_PREFIX + "itFilter = " +
Consts.RIO_PREFIX + "rtiFilter.getFieldTypeInfos().iterator();\n");
cb.append(Consts.RIO_PREFIX + "i=0;\n");
cb.append("while (" + Consts.RIO_PREFIX + "itFilter.hasNext()) {\n");
cb.append("org.apache.hadoop.record.meta.FieldTypeInfo " +
Consts.RIO_PREFIX + "tInfoFilter = " +
Consts.RIO_PREFIX + "itFilter.next();\n");
cb.append("java.util.Iterator " + Consts.RIO_PREFIX + "it = " + Consts.RTI_VAR +
".getFieldTypeInfos().iterator();\n");
cb.append(Consts.RIO_PREFIX + "j=1;\n");
cb.append("while (" + Consts.RIO_PREFIX + "it.hasNext()) {\n");
cb.append("org.apache.hadoop.record.meta.FieldTypeInfo " +
Consts.RIO_PREFIX + "tInfo = " + Consts.RIO_PREFIX + "it.next();\n");
cb.append("if (" + Consts.RIO_PREFIX + "tInfo.equals(" +
Consts.RIO_PREFIX + "tInfoFilter)) {\n");
cb.append(Consts.RTI_FILTER_FIELDS + "[" + Consts.RIO_PREFIX + "i] = " +
Consts.RIO_PREFIX + "j;\n");
cb.append("break;\n");
cb.append("}\n");
cb.append(Consts.RIO_PREFIX + "j++;\n");
cb.append("}\n");
/*int ct = 0;
for (Iterator> i = fields.iterator(); i.hasNext();) {
ct++;
JField jf = i.next();
JavaType type = jf.getType();
String name = jf.getName();
if (ct != 1) {
cb.append("else ");
}
type.genRtiFieldCondition(cb, name, ct);
}
if (ct != 0) {
cb.append("else {\n");
cb.append("rtiFilterFields[i] = 0;\n");
cb.append("}\n");
}*/
cb.append(Consts.RIO_PREFIX + "i++;\n");
cb.append("}\n");
cb.append("}\n");
}
@Override
void genReadMethod(CodeBuffer cb, String fname, String tag, boolean decl) {
if (decl) {
cb.append(fullName+" "+fname+";\n");
}
cb.append(fname+"= new "+fullName+"();\n");
cb.append(fname+".deserialize(" + Consts.RECORD_INPUT + ",\""+tag+"\");\n");
}
@Override
void genWriteMethod(CodeBuffer cb, String fname, String tag) {
cb.append(fname+".serialize(" + Consts.RECORD_OUTPUT + ",\""+tag+"\");\n");
}
@Override
void genSlurpBytes(CodeBuffer cb, String b, String s, String l) {
cb.append("{\n");
cb.append("int r = "+fullName+
".Comparator.slurpRaw("+b+","+s+","+l+");\n");
cb.append(s+"+=r; "+l+"-=r;\n");
cb.append("}\n");
}
@Override
void genCompareBytes(CodeBuffer cb) {
cb.append("{\n");
cb.append("int r1 = "+fullName+
".Comparator.compareRaw(b1,s1,l1,b2,s2,l2);\n");
cb.append("if (r1 <= 0) { return r1; }\n");
cb.append("s1+=r1; s2+=r1; l1-=r1; l2-=r1;\n");
cb.append("}\n");
}
void genCode(String destDir, ArrayList options) throws IOException {
String pkg = module;
String pkgpath = pkg.replaceAll("\\.", "/");
File pkgdir = new File(destDir, pkgpath);
final File jfile = new File(pkgdir, name+".java");
if (!pkgdir.exists()) {
// create the pkg directory
boolean ret = pkgdir.mkdirs();
if (!ret) {
throw new IOException("Cannnot create directory: "+pkgpath);
}
} else if (!pkgdir.isDirectory()) {
// not a directory
throw new IOException(pkgpath+" is not a directory.");
}
CodeBuffer cb = new CodeBuffer();
cb.append("// File generated by hadoop record compiler. Do not edit.\n");
cb.append("package "+module+";\n\n");
cb.append("public class "+name+
" extends org.apache.hadoop.record.Record {\n");
// type information declarations
cb.append("private static final " +
"org.apache.hadoop.record.meta.RecordTypeInfo " +
Consts.RTI_VAR + ";\n");
cb.append("private static " +
"org.apache.hadoop.record.meta.RecordTypeInfo " +
Consts.RTI_FILTER + ";\n");
cb.append("private static int[] " + Consts.RTI_FILTER_FIELDS + ";\n");
// static init for type information
cb.append("static {\n");
cb.append(Consts.RTI_VAR + " = " +
"new org.apache.hadoop.record.meta.RecordTypeInfo(\"" +
name + "\");\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genStaticTypeInfo(cb, name);
}
cb.append("}\n\n");
// field definitions
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genDecl(cb, name);
}
// default constructor
cb.append("public "+name+"() { }\n");
// constructor
cb.append("public "+name+"(\n");
int fIdx = 0;
for (Iterator> i = fields.iterator(); i.hasNext(); fIdx++) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genConstructorParam(cb, name);
cb.append((!i.hasNext())?"":",\n");
}
cb.append(") {\n");
fIdx = 0;
for (Iterator> i = fields.iterator(); i.hasNext(); fIdx++) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genConstructorSet(cb, name);
}
cb.append("}\n");
// getter/setter for type info
cb.append("public static org.apache.hadoop.record.meta.RecordTypeInfo"
+ " getTypeInfo() {\n");
cb.append("return " + Consts.RTI_VAR + ";\n");
cb.append("}\n");
cb.append("public static void setTypeFilter("
+ "org.apache.hadoop.record.meta.RecordTypeInfo rti) {\n");
cb.append("if (null == rti) return;\n");
cb.append(Consts.RTI_FILTER + " = rti;\n");
cb.append(Consts.RTI_FILTER_FIELDS + " = null;\n");
// set RTIFilter for nested structs.
// To prevent setting up the type filter for the same struct more than once,
// we use a hash map to keep track of what we've set.
Map nestedStructMap = new HashMap();
for (JField jf : fields) {
JavaType type = jf.getType();
type.genSetRTIFilter(cb, nestedStructMap);
}
cb.append("}\n");
// setupRtiFields()
genSetupRtiFields(cb);
// getters/setters for member variables
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genGetSet(cb, name);
}
// serialize()
cb.append("public void serialize("+
"final org.apache.hadoop.record.RecordOutput " +
Consts.RECORD_OUTPUT + ", final String " + Consts.TAG + ")\n"+
"throws java.io.IOException {\n");
cb.append(Consts.RECORD_OUTPUT + ".startRecord(this," + Consts.TAG + ");\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genWriteMethod(cb, name, name);
}
cb.append(Consts.RECORD_OUTPUT + ".endRecord(this," + Consts.TAG+");\n");
cb.append("}\n");
// deserializeWithoutFilter()
cb.append("private void deserializeWithoutFilter("+
"final org.apache.hadoop.record.RecordInput " +
Consts.RECORD_INPUT + ", final String " + Consts.TAG + ")\n"+
"throws java.io.IOException {\n");
cb.append(Consts.RECORD_INPUT + ".startRecord(" + Consts.TAG + ");\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genReadMethod(cb, name, name, false);
}
cb.append(Consts.RECORD_INPUT + ".endRecord(" + Consts.TAG+");\n");
cb.append("}\n");
// deserialize()
cb.append("public void deserialize(final " +
"org.apache.hadoop.record.RecordInput " +
Consts.RECORD_INPUT + ", final String " + Consts.TAG + ")\n"+
"throws java.io.IOException {\n");
cb.append("if (null == " + Consts.RTI_FILTER + ") {\n");
cb.append("deserializeWithoutFilter(" + Consts.RECORD_INPUT + ", " +
Consts.TAG + ");\n");
cb.append("return;\n");
cb.append("}\n");
cb.append("// if we're here, we need to read based on version info\n");
cb.append(Consts.RECORD_INPUT + ".startRecord(" + Consts.TAG + ");\n");
cb.append("setupRtiFields();\n");
cb.append("for (int " + Consts.RIO_PREFIX + "i=0; " + Consts.RIO_PREFIX +
"i<" + Consts.RTI_FILTER + ".getFieldTypeInfos().size(); " +
Consts.RIO_PREFIX + "i++) {\n");
int ct = 0;
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
ct++;
if (1 != ct) {
cb.append("else ");
}
cb.append("if (" + ct + " == " + Consts.RTI_FILTER_FIELDS + "[" +
Consts.RIO_PREFIX + "i]) {\n");
type.genReadMethod(cb, name, name, false);
cb.append("}\n");
}
if (0 != ct) {
cb.append("else {\n");
cb.append("java.util.ArrayList<"
+ "org.apache.hadoop.record.meta.FieldTypeInfo> typeInfos = "
+ "(java.util.ArrayList<"
+ "org.apache.hadoop.record.meta.FieldTypeInfo>)"
+ "(" + Consts.RTI_FILTER + ".getFieldTypeInfos());\n");
cb.append("org.apache.hadoop.record.meta.Utils.skip(" +
Consts.RECORD_INPUT + ", " + "typeInfos.get(" + Consts.RIO_PREFIX +
"i).getFieldID(), typeInfos.get(" +
Consts.RIO_PREFIX + "i).getTypeID());\n");
cb.append("}\n");
}
cb.append("}\n");
cb.append(Consts.RECORD_INPUT + ".endRecord(" + Consts.TAG+");\n");
cb.append("}\n");
// compareTo()
cb.append("public int compareTo (final Object " + Consts.RIO_PREFIX +
"peer_) throws ClassCastException {\n");
cb.append("if (!(" + Consts.RIO_PREFIX + "peer_ instanceof "+name+")) {\n");
cb.append("throw new ClassCastException(\"Comparing different types of records.\");\n");
cb.append("}\n");
cb.append(name+" " + Consts.RIO_PREFIX + "peer = ("+name+") " +
Consts.RIO_PREFIX + "peer_;\n");
cb.append("int " + Consts.RIO_PREFIX + "ret = 0;\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genCompareTo(cb, name, Consts.RIO_PREFIX + "peer."+name);
cb.append("if (" + Consts.RIO_PREFIX + "ret != 0) return " +
Consts.RIO_PREFIX + "ret;\n");
}
cb.append("return " + Consts.RIO_PREFIX + "ret;\n");
cb.append("}\n");
// equals()
cb.append("public boolean equals(final Object " + Consts.RIO_PREFIX +
"peer_) {\n");
cb.append("if (!(" + Consts.RIO_PREFIX + "peer_ instanceof "+name+")) {\n");
cb.append("return false;\n");
cb.append("}\n");
cb.append("if (" + Consts.RIO_PREFIX + "peer_ == this) {\n");
cb.append("return true;\n");
cb.append("}\n");
cb.append(name+" " + Consts.RIO_PREFIX + "peer = ("+name+") " +
Consts.RIO_PREFIX + "peer_;\n");
cb.append("boolean " + Consts.RIO_PREFIX + "ret = false;\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genEquals(cb, name, Consts.RIO_PREFIX + "peer."+name);
cb.append("if (!" + Consts.RIO_PREFIX + "ret) return " +
Consts.RIO_PREFIX + "ret;\n");
}
cb.append("return " + Consts.RIO_PREFIX + "ret;\n");
cb.append("}\n");
// clone()
cb.append("public Object clone() throws CloneNotSupportedException {\n");
cb.append(name+" " + Consts.RIO_PREFIX + "other = new "+name+"();\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genClone(cb, name);
}
cb.append("return " + Consts.RIO_PREFIX + "other;\n");
cb.append("}\n");
cb.append("public int hashCode() {\n");
cb.append("int " + Consts.RIO_PREFIX + "result = 17;\n");
cb.append("int " + Consts.RIO_PREFIX + "ret;\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genHashCode(cb, name);
cb.append(Consts.RIO_PREFIX + "result = 37*" + Consts.RIO_PREFIX +
"result + " + Consts.RIO_PREFIX + "ret;\n");
}
cb.append("return " + Consts.RIO_PREFIX + "result;\n");
cb.append("}\n");
cb.append("public static String signature() {\n");
cb.append("return \""+getSignature()+"\";\n");
cb.append("}\n");
cb.append("public static class Comparator extends"+
" org.apache.hadoop.record.RecordComparator {\n");
cb.append("public Comparator() {\n");
cb.append("super("+name+".class);\n");
cb.append("}\n");
cb.append("static public int slurpRaw(byte[] b, int s, int l) {\n");
cb.append("try {\n");
cb.append("int os = s;\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genSlurpBytes(cb, "b","s","l");
}
cb.append("return (os - s);\n");
cb.append("} catch(java.io.IOException e) {\n");
cb.append("throw new RuntimeException(e);\n");
cb.append("}\n");
cb.append("}\n");
cb.append("static public int compareRaw(byte[] b1, int s1, int l1,\n");
cb.append(" byte[] b2, int s2, int l2) {\n");
cb.append("try {\n");
cb.append("int os1 = s1;\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
JavaType type = jf.getType();
type.genCompareBytes(cb);
}
cb.append("return (os1 - s1);\n");
cb.append("} catch(java.io.IOException e) {\n");
cb.append("throw new RuntimeException(e);\n");
cb.append("}\n");
cb.append("}\n");
cb.append("public int compare(byte[] b1, int s1, int l1,\n");
cb.append(" byte[] b2, int s2, int l2) {\n");
cb.append("int ret = compareRaw(b1,s1,l1,b2,s2,l2);\n");
cb.append("return (ret == -1)? -1 : ((ret==0)? 1 : 0);");
cb.append("}\n");
cb.append("}\n\n");
cb.append("static {\n");
cb.append("org.apache.hadoop.record.RecordComparator.define("
+name+".class, new Comparator());\n");
cb.append("}\n");
cb.append("}\n");
FileWriter jj = new FileWriter(jfile);
try {
jj.write(cb.toString());
} finally {
jj.close();
}
}
}
class CppRecord extends CppCompType {
private String fullName;
private String name;
private String module;
private ArrayList> fields =
new ArrayList>();
CppRecord(String name, ArrayList> flist) {
super(name.replaceAll("\\.","::"));
this.fullName = name.replaceAll("\\.", "::");
int idx = name.lastIndexOf('.');
this.name = name.substring(idx+1);
this.module = name.substring(0, idx).replaceAll("\\.", "::");
for (Iterator> iter = flist.iterator(); iter.hasNext();) {
JField f = iter.next();
fields.add(new JField(f.getName(), f.getType().getCppType()));
}
}
@Override
String getTypeIDObjectString() {
return "new ::hadoop::StructTypeID(" +
fullName + "::getTypeInfo().getFieldTypeInfos())";
}
String genDecl(String fname) {
return " "+name+" "+fname+";\n";
}
@Override
void genSetRTIFilter(CodeBuffer cb) {
// we set the RTI filter here
cb.append(fullName + "::setTypeFilter(rti.getNestedStructTypeInfo(\""+
name + "\"));\n");
}
void genSetupRTIFields(CodeBuffer cb) {
cb.append("void " + fullName + "::setupRtiFields() {\n");
cb.append("if (NULL == p" + Consts.RTI_FILTER + ") return;\n");
cb.append("if (NULL != p" + Consts.RTI_FILTER_FIELDS + ") return;\n");
cb.append("p" + Consts.RTI_FILTER_FIELDS + " = new int[p" +
Consts.RTI_FILTER + "->getFieldTypeInfos().size()];\n");
cb.append("for (unsigned int " + Consts.RIO_PREFIX + "i=0; " +
Consts.RIO_PREFIX + "igetFieldTypeInfos().size(); " + Consts.RIO_PREFIX + "i++) {\n");
cb.append("p" + Consts.RTI_FILTER_FIELDS + "[" + Consts.RIO_PREFIX +
"i] = 0;\n");
cb.append("}\n");
cb.append("for (unsigned int " + Consts.RIO_PREFIX + "i=0; " +
Consts.RIO_PREFIX + "igetFieldTypeInfos().size(); " + Consts.RIO_PREFIX + "i++) {\n");
cb.append("for (unsigned int " + Consts.RIO_PREFIX + "j=0; " +
Consts.RIO_PREFIX + "jgetFieldTypeInfos().size(); " + Consts.RIO_PREFIX + "j++) {\n");
cb.append("if (*(p" + Consts.RTI_FILTER + "->getFieldTypeInfos()[" +
Consts.RIO_PREFIX + "i]) == *(p" + Consts.RTI_VAR +
"->getFieldTypeInfos()[" + Consts.RIO_PREFIX + "j])) {\n");
cb.append("p" + Consts.RTI_FILTER_FIELDS + "[" + Consts.RIO_PREFIX +
"i] = " + Consts.RIO_PREFIX + "j+1;\n");
cb.append("break;\n");
cb.append("}\n");
cb.append("}\n");
cb.append("}\n");
cb.append("}\n");
}
void genCode(FileWriter hh, FileWriter cc, ArrayList options)
throws IOException {
CodeBuffer hb = new CodeBuffer();
String[] ns = module.split("::");
for (int i = 0; i < ns.length; i++) {
hb.append("namespace "+ns[i]+" {\n");
}
hb.append("class "+name+" : public ::hadoop::Record {\n");
hb.append("private:\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
CppType type = jf.getType();
type.genDecl(hb, name);
}
// type info vars
hb.append("static ::hadoop::RecordTypeInfo* p" + Consts.RTI_VAR + ";\n");
hb.append("static ::hadoop::RecordTypeInfo* p" + Consts.RTI_FILTER + ";\n");
hb.append("static int* p" + Consts.RTI_FILTER_FIELDS + ";\n");
hb.append("static ::hadoop::RecordTypeInfo* setupTypeInfo();\n");
hb.append("static void setupRtiFields();\n");
hb.append("virtual void deserializeWithoutFilter(::hadoop::IArchive& " +
Consts.RECORD_INPUT + ", const char* " + Consts.TAG + ");\n");
hb.append("public:\n");
hb.append("static const ::hadoop::RecordTypeInfo& getTypeInfo() " +
"{return *p" + Consts.RTI_VAR + ";}\n");
hb.append("static void setTypeFilter(const ::hadoop::RecordTypeInfo& rti);\n");
hb.append("static void setTypeFilter(const ::hadoop::RecordTypeInfo* prti);\n");
hb.append("virtual void serialize(::hadoop::OArchive& " +
Consts.RECORD_OUTPUT + ", const char* " + Consts.TAG + ") const;\n");
hb.append("virtual void deserialize(::hadoop::IArchive& " +
Consts.RECORD_INPUT + ", const char* " + Consts.TAG + ");\n");
hb.append("virtual const ::std::string& type() const;\n");
hb.append("virtual const ::std::string& signature() const;\n");
hb.append("virtual bool operator<(const "+name+"& peer_) const;\n");
hb.append("virtual bool operator==(const "+name+"& peer_) const;\n");
hb.append("virtual ~"+name+"() {};\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
CppType type = jf.getType();
type.genGetSet(hb, name);
}
hb.append("}; // end record "+name+"\n");
for (int i=ns.length-1; i>=0; i--) {
hb.append("} // end namespace "+ns[i]+"\n");
}
hh.write(hb.toString());
CodeBuffer cb = new CodeBuffer();
// initialize type info vars
cb.append("::hadoop::RecordTypeInfo* " + fullName + "::p" +
Consts.RTI_VAR + " = " + fullName + "::setupTypeInfo();\n");
cb.append("::hadoop::RecordTypeInfo* " + fullName + "::p" +
Consts.RTI_FILTER + " = NULL;\n");
cb.append("int* " + fullName + "::p" +
Consts.RTI_FILTER_FIELDS + " = NULL;\n\n");
// setupTypeInfo()
cb.append("::hadoop::RecordTypeInfo* "+fullName+"::setupTypeInfo() {\n");
cb.append("::hadoop::RecordTypeInfo* p = new ::hadoop::RecordTypeInfo(\"" +
name + "\");\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
CppType type = jf.getType();
type.genStaticTypeInfo(cb, name);
}
cb.append("return p;\n");
cb.append("}\n");
// setTypeFilter()
cb.append("void "+fullName+"::setTypeFilter(const " +
"::hadoop::RecordTypeInfo& rti) {\n");
cb.append("if (NULL != p" + Consts.RTI_FILTER + ") {\n");
cb.append("delete p" + Consts.RTI_FILTER + ";\n");
cb.append("}\n");
cb.append("p" + Consts.RTI_FILTER + " = new ::hadoop::RecordTypeInfo(rti);\n");
cb.append("if (NULL != p" + Consts.RTI_FILTER_FIELDS + ") {\n");
cb.append("delete p" + Consts.RTI_FILTER_FIELDS + ";\n");
cb.append("}\n");
cb.append("p" + Consts.RTI_FILTER_FIELDS + " = NULL;\n");
// set RTIFilter for nested structs. We may end up with multiple lines that
// do the same thing, if the same struct is nested in more than one field,
// but that's OK.
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
CppType type = jf.getType();
type.genSetRTIFilter(cb);
}
cb.append("}\n");
// setTypeFilter()
cb.append("void "+fullName+"::setTypeFilter(const " +
"::hadoop::RecordTypeInfo* prti) {\n");
cb.append("if (NULL != prti) {\n");
cb.append("setTypeFilter(*prti);\n");
cb.append("}\n");
cb.append("}\n");
// setupRtiFields()
genSetupRTIFields(cb);
// serialize()
cb.append("void "+fullName+"::serialize(::hadoop::OArchive& " +
Consts.RECORD_OUTPUT + ", const char* " + Consts.TAG + ") const {\n");
cb.append(Consts.RECORD_OUTPUT + ".startRecord(*this," +
Consts.TAG + ");\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
CppType type = jf.getType();
if (type instanceof JBuffer.CppBuffer) {
cb.append(Consts.RECORD_OUTPUT + ".serialize("+name+","+name+
".length(),\""+name+"\");\n");
} else {
cb.append(Consts.RECORD_OUTPUT + ".serialize("+name+",\""+
name+"\");\n");
}
}
cb.append(Consts.RECORD_OUTPUT + ".endRecord(*this," + Consts.TAG + ");\n");
cb.append("return;\n");
cb.append("}\n");
// deserializeWithoutFilter()
cb.append("void "+fullName+"::deserializeWithoutFilter(::hadoop::IArchive& " +
Consts.RECORD_INPUT + ", const char* " + Consts.TAG + ") {\n");
cb.append(Consts.RECORD_INPUT + ".startRecord(*this," +
Consts.TAG + ");\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
CppType type = jf.getType();
if (type instanceof JBuffer.CppBuffer) {
cb.append("{\nsize_t len=0; " + Consts.RECORD_INPUT + ".deserialize("+
name+",len,\""+name+"\");\n}\n");
} else {
cb.append(Consts.RECORD_INPUT + ".deserialize("+name+",\""+
name+"\");\n");
}
}
cb.append(Consts.RECORD_INPUT + ".endRecord(*this," + Consts.TAG + ");\n");
cb.append("return;\n");
cb.append("}\n");
// deserialize()
cb.append("void "+fullName+"::deserialize(::hadoop::IArchive& " +
Consts.RECORD_INPUT + ", const char* " + Consts.TAG + ") {\n");
cb.append("if (NULL == p" + Consts.RTI_FILTER + ") {\n");
cb.append("deserializeWithoutFilter(" + Consts.RECORD_INPUT + ", " +
Consts.TAG + ");\n");
cb.append("return;\n");
cb.append("}\n");
cb.append("// if we're here, we need to read based on version info\n");
cb.append(Consts.RECORD_INPUT + ".startRecord(*this," +
Consts.TAG + ");\n");
cb.append("setupRtiFields();\n");
cb.append("for (unsigned int " + Consts.RIO_PREFIX + "i=0; " +
Consts.RIO_PREFIX + "igetFieldTypeInfos().size(); " + Consts.RIO_PREFIX + "i++) {\n");
int ct = 0;
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
CppType type = jf.getType();
ct++;
if (1 != ct) {
cb.append("else ");
}
cb.append("if (" + ct + " == p" + Consts.RTI_FILTER_FIELDS + "[" +
Consts.RIO_PREFIX + "i]) {\n");
if (type instanceof JBuffer.CppBuffer) {
cb.append("{\nsize_t len=0; " + Consts.RECORD_INPUT + ".deserialize("+
name+",len,\""+name+"\");\n}\n");
} else {
cb.append(Consts.RECORD_INPUT + ".deserialize("+name+",\""+
name+"\");\n");
}
cb.append("}\n");
}
if (0 != ct) {
cb.append("else {\n");
cb.append("const std::vector< ::hadoop::FieldTypeInfo* >& typeInfos = p" +
Consts.RTI_FILTER + "->getFieldTypeInfos();\n");
cb.append("::hadoop::Utils::skip(" + Consts.RECORD_INPUT +
", typeInfos[" + Consts.RIO_PREFIX + "i]->getFieldID()->c_str()" +
", *(typeInfos[" + Consts.RIO_PREFIX + "i]->getTypeID()));\n");
cb.append("}\n");
}
cb.append("}\n");
cb.append(Consts.RECORD_INPUT + ".endRecord(*this, " + Consts.TAG+");\n");
cb.append("}\n");
// operator <
cb.append("bool "+fullName+"::operator< (const "+fullName+"& peer_) const {\n");
cb.append("return (1\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
cb.append("&& ("+name+" < peer_."+name+")\n");
}
cb.append(");\n");
cb.append("}\n");
cb.append("bool "+fullName+"::operator== (const "+fullName+"& peer_) const {\n");
cb.append("return (1\n");
for (Iterator> i = fields.iterator(); i.hasNext();) {
JField jf = i.next();
String name = jf.getName();
cb.append("&& ("+name+" == peer_."+name+")\n");
}
cb.append(");\n");
cb.append("}\n");
cb.append("const ::std::string&"+fullName+"::type() const {\n");
cb.append("static const ::std::string type_(\""+name+"\");\n");
cb.append("return type_;\n");
cb.append("}\n");
cb.append("const ::std::string&"+fullName+"::signature() const {\n");
cb.append("static const ::std::string sig_(\""+getSignature()+"\");\n");
cb.append("return sig_;\n");
cb.append("}\n");
cc.write(cb.toString());
}
}
class CRecord extends CCompType {
}
private String signature;
/**
* Creates a new instance of JRecord
*/
public JRecord(String name, ArrayList> flist) {
setJavaType(new JavaRecord(name, flist));
setCppType(new CppRecord(name, flist));
setCType(new CRecord());
// precompute signature
int idx = name.lastIndexOf('.');
String recName = name.substring(idx+1);
StringBuilder sb = new StringBuilder();
sb.append("L").append(recName).append("(");
for (Iterator> i = flist.iterator(); i.hasNext();) {
String s = i.next().getType().getSignature();
sb.append(s);
}
sb.append(")");
signature = sb.toString();
}
@Override
String getSignature() {
return signature;
}
void genCppCode(FileWriter hh, FileWriter cc, ArrayList options)
throws IOException {
((CppRecord)getCppType()).genCode(hh, cc, options);
}
void genJavaCode(String destDir, ArrayList options)
throws IOException {
((JavaRecord)getJavaType()).genCode(destDir, options);
}
}
