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Added comments and am in the process of testing

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U-BASIS\dsmyda 2019-11-07 17:01:18 -05:00
parent ee3c0c01d2
commit 859f1faba9
1 changed files with 22 additions and 15 deletions
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25
Core/src/org/sleuthkit/autopsy/datasourceprocessors/xry/XRYFileReader.java
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@ -27,17 +27,16 @@ import java.nio.file.Path;
import java.util.NoSuchElementException;
/**
* Extracts XRY entities and determines the report type. An
* example of an XRY entity would be:
* Extracts XRY entities and determines the report type. An example of an XRY
* entity would be:
*
* Calls # 1
* Call Type: Missed
* Time: 1/2/2019 1:23:45 PM (Device)
* From
* Tel: 12345678
*
*/
public final class XRYFileReader {
public final class XRYFileReader implements AutoCloseable {
///Assume UTF_16LE
private static final Charset CHARSET = StandardCharsets.UTF_16LE;
@ -45,6 +44,7 @@ public final class XRYFileReader {
//Assume all headers are 5 lines in length.
private static final int HEADER_LENGTH_IN_LINES = 5;
//Underlying reader for the xry file.
private final BufferedReader reader;
private final StringBuilder xryEntity;
@ -62,7 +62,7 @@ public final class XRYFileReader {
public XRYFileReader(Path xryFile) throws IOException {
reader = Files.newBufferedReader(xryFile, CHARSET);
//Advance reader to start of the first XRY entity.
//Advance the reader to the start of the first XRY entity.
for (int i = 0; i < HEADER_LENGTH_IN_LINES; i++) {
reader.readLine();
}
@ -71,9 +71,11 @@ public final class XRYFileReader {
}
/**
* Advances the reader until the next valid XRY entity is detected.
*
* @return
* @throws IOException
* @return Indication that there is another XRY entity to consume or that
* the file has been exhausted.
* @throws IOException if an I/O error occurs.
*/
public boolean hasNextEntity() throws IOException {
//Entity has yet to be consumed.
@ -98,9 +100,12 @@ public final class XRYFileReader {
}
/**
* Returns an XRY entity if there is one, otherwise an exception is thrown.
*
* @return
* @throws IOException
* @return A non-empty XRY entity.
* @throws IOException if an I/O error occurs.
* @throws NoSuchElementException if there are no more XRY entities to
* consume.
*/
public String nextEntity() throws IOException {
if (hasNextEntity()) {
@ -113,9 +118,11 @@ public final class XRYFileReader {
}
/**
* Closes any file handles this reader may have open.
*
* @throws IOException
*/
@Override
public void close() throws IOException {
reader.close();
}