本文整理匯總了Java中org.apache.hadoop.io.WritableFactories類的典型用法代碼示例。如果您正苦於以下問題：Java WritableFactories類的具體用法？Java WritableFactories怎麽用？Java WritableFactories使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
WritableFactories類屬於org.apache.hadoop.io包，在下文中一共展示了WritableFactories類的9個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: readObject
import org.apache.hadoop.io.WritableFactories; //導入依賴的package包/類
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
// read the parent fields and the final fields
in.defaultReadObject();
// the job conf knows how to deserialize itself
jobConf = new JobConf();
jobConf.readFields(in);
try {
hadoopInputSplit = (org.apache.hadoop.mapred.InputSplit) WritableFactories.newInstance(splitType);
}
catch (Exception e) {
throw new RuntimeException("Unable to instantiate Hadoop InputSplit", e);
}
if (hadoopInputSplit instanceof Configurable) {
((Configurable) hadoopInputSplit).setConf(this.jobConf);
}
else if (hadoopInputSplit instanceof JobConfigurable) {
((JobConfigurable) hadoopInputSplit).configure(this.jobConf);
}
hadoopInputSplit.readFields(in);
}
示例2: read
import org.apache.hadoop.io.WritableFactories; //導入依賴的package包/類
@Override
public void read(DataInputView in) throws IOException {
this.splitNumber=in.readInt();
this.hadoopInputSplitTypeName = in.readUTF();
if(hadoopInputSplit == null) {
try {
Class<? extends org.apache.hadoop.io.Writable> inputSplit =
Class.forName(hadoopInputSplitTypeName).asSubclass(org.apache.hadoop.io.Writable.class);
this.hadoopInputSplit = (org.apache.hadoop.mapred.InputSplit) WritableFactories.newInstance( inputSplit );
}
catch (Exception e) {
throw new RuntimeException("Unable to create InputSplit", e);
}
}
jobConf = new JobConf();
jobConf.readFields(in);
if (this.hadoopInputSplit instanceof Configurable) {
((Configurable) this.hadoopInputSplit).setConf(this.jobConf);
}
this.hadoopInputSplit.readFields(in);
}
示例3: read
import org.apache.hadoop.io.WritableFactories; //導入依賴的package包/類
@Override
public void read(DataInputView in) throws IOException {
this.splitNumber=in.readInt();
String className = in.readUTF();
if(this.mapreduceInputSplit == null) {
try {
Class<? extends org.apache.hadoop.io.Writable> inputSplit =
Class.forName(className).asSubclass(org.apache.hadoop.io.Writable.class);
this.mapreduceInputSplit = (org.apache.hadoop.mapreduce.InputSplit) WritableFactories.newInstance(inputSplit);
} catch (Exception e) {
throw new RuntimeException("Unable to create InputSplit", e);
}
}
((Writable)this.mapreduceInputSplit).readFields(in);
}
示例4: readObject
import org.apache.hadoop.io.WritableFactories; //導入依賴的package包/類
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
// read the parent fields and the final fields
in.defaultReadObject();
try {
Class<? extends Writable> writableSplit = splitType.asSubclass(Writable.class);
mapreduceInputSplit = (org.apache.hadoop.mapreduce.InputSplit) WritableFactories.newInstance(writableSplit);
}
catch (Exception e) {
throw new RuntimeException("Unable to instantiate the Hadoop InputSplit", e);
}
((Writable) mapreduceInputSplit).readFields(in);
}
示例5: createWritableForName
import org.apache.hadoop.io.WritableFactories; //導入依賴的package包/類
/**
* Used to dynamically load a filter class, and create a Writable filter.
* This filter class most likely extends Configurable.
*
* @param className the filter class name.
* @return a filter
*/
public static Filter createWritableForName(String className) {
try {
Class<? extends Filter> clazz = getFilterClassByName(className);
return (Filter)WritableFactories.newInstance(clazz, new Configuration());
} catch (ClassNotFoundException e) {
throw new RuntimeException("Can't find class " + className);
}
}
示例6: createForName
import org.apache.hadoop.io.WritableFactories; //導入依賴的package包/類
@SuppressWarnings("unchecked")
private Writable createForName(String className) {
try {
Class<? extends Writable> clazz = (Class<? extends Writable>) Class
.forName(className);
return WritableFactories.newInstance(clazz, new Configuration());
} catch (ClassNotFoundException e) {
throw new RuntimeException("Can't find class " + className);
}
}
示例7: createForName
import org.apache.hadoop.io.WritableFactories; //導入依賴的package包/類
@SuppressWarnings("unchecked")
private Writable createForName(String className) {
try {
Class<? extends Writable> clazz =
(Class<? extends Writable>) Class.forName(className);
return WritableFactories.newInstance(clazz, new Configuration());
} catch (ClassNotFoundException e) {
throw new RuntimeException("Can't find class " + className);
}
}
示例8: createForName
import org.apache.hadoop.io.WritableFactories; //導入依賴的package包/類
@SuppressWarnings("unchecked")
private Writable createForName(String className) {
try {
Class<? extends Writable> clazz = (Class<? extends Writable>) Class.forName(className);
return WritableFactories.newInstance(clazz, new Configuration());
} catch (ClassNotFoundException e) {
throw new RuntimeException("Can't find class " + className);
}
}
示例9: createWritableForName
import org.apache.hadoop.io.WritableFactories; //導入依賴的package包/類
/**
* Used to dynamically load a filter class, and create a Writable filter.
* This filter class most likely extends Configurable.
*
* @param className the filter class name.
* @return a filter
*/
@SuppressWarnings("unchecked")
public static Filter createWritableForName(String className) {
try {
Class<? extends Filter> clazz =
(Class<? extends Filter>) Class.forName(className, true, CLASS_LOADER);
return (Filter)WritableFactories.newInstance(clazz, new Configuration());
} catch (ClassNotFoundException e) {
throw new RuntimeException("Can't find class " + className);
}
}