List of usage examples for java.io EOFException EOFException
public EOFException(String s)
EOFException with the specified detail message. From source file:com.continuent.tungsten.common.mysql.MySQLPacket.java
/** * Reads a MySQL packet from the input stream. * //from w w w . j a va 2 s. co m * @param in the data input stream from where we read the MySQL packet * @param timeoutMillis Number of milliseconds we will pause while waiting * for data from the the network during a packet. * @return a MySQLPacket object or null if the MySQL packet cannot be read */ public static MySQLPacket readPacket(InputStream in, long timeoutMillis) { try { int mask = 0xff; int packetLen1 = in.read(); int packetLen2 = in.read(); int packetLen3 = in.read(); int packetLen = (packetLen1 & mask) | (packetLen2 & mask) << 8 | (packetLen3 & mask) << 16; int packetNumber = in.read(); // This is ok, no more packet on the line if (packetLen1 == -1) { logger.debug("Reached end of input stream while reading packet"); return null; } // This is bad, client went away if (packetLen2 == -1 || packetLen3 == -1 || packetNumber == -1) { throw new EOFException("Reached end of input stream."); } // read the body of the packet byte[] packetData = new byte[packetLen + HEADER_LENGTH]; // copy header packetData[0] = (byte) packetLen1; packetData[1] = (byte) packetLen2; packetData[2] = (byte) packetLen3; packetData[3] = (byte) packetNumber; // See if we can trust the availability from this stream. boolean deterministicAvailability = true; if (in instanceof WrappedInputStream) { deterministicAvailability = ((WrappedInputStream) in).isDeterministic(); } // read() returns the number of actual bytes read, which might be // less that the desired length this loop ensures that the whole // packet is read int n = 0; while (n < packetLen) { // Issue 281. Wait until at least one byte is available to avoid // a possible out of data condition when reading from the // network. if (deterministicAvailability && in.available() == 0) { long readStartTime = System.currentTimeMillis(); long delay = -1; // Sleep for up to timeout. while (in.available() == 0) { try { Thread.sleep(10); } catch (InterruptedException e) { return null; } delay = System.currentTimeMillis() - readStartTime; if (delay > timeoutMillis) { break; } } // Note the delay if longer than 10% of the timeout. This // is helpful for diagnosing failures. if (delay > (timeoutMillis / 10)) { logger.info("Paused to allow packet data to appear on the network: delay=" + (delay / 1000.0) + " timeout=" + (timeoutMillis / 1000.0) + " packetNumber=" + packetNumber + " packetlen=" + packetLen + " bytesRead=" + n); } } // Now read data. int count = in.read(packetData, HEADER_LENGTH + n, packetLen - n); if (count < 0) { throw new EOFException("Reached end of input stream: packetNumber=" + packetNumber + " packetlen=" + packetLen + " bytesRead=" + n); } n += count; } MySQLPacket p = new MySQLPacket(packetLen, packetData, (byte) packetNumber); p.setInputStream(in); return p; } catch (SocketTimeoutException e) { logger.warn("Socket timeout expired, closing connection"); } catch (IOException e) { logger.error("I/O error while reading from client socket", e); } return null; }
From source file:wordnice.api.Nice.java
public static EOFException eof(int readed, int wanted) { return new EOFException("Readed " + readed + " bytes from " + wanted + " total!"); }
From source file:org.apache.hadoop.hive.serde2.teradata.TeradataBinaryDataInputStream.java
/** * Read VARBYTE(N).//www.j ava2 s . com * The representation of VARBYTE in Teradata binary format is: * the first two bytes represent the length N of this varchar field * the next N bytes represent the content of this varchar field. * To pad the null varbyte, the length will be 0 and the content will be none. * * @return the byte [ ] * @throws IOException the io exception */ public byte[] readVarbyte() throws IOException { int varbyteLength = readUnsignedShort(); byte[] varbyteContent = new byte[varbyteLength]; int numOfBytesRead = in.read(varbyteContent); if (varbyteContent.length != 0 && numOfBytesRead != varbyteLength) { throw new EOFException(format("Fail to read the varbyte. Expect %d bytes, get %d bytes", varbyteLength, numOfBytesRead)); } return varbyteContent; }
From source file:org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInputStream.java
/** {@inheritDoc} */ @Override/*ww w . j a v a 2 s . com*/ public synchronized void readFully(long position, byte[] buf, int off, int len) throws IOException { long remaining = limit - position; checkClosed(); if (len > remaining) throw new EOFException("End of stream reached before data was fully read."); readStart(); try { int read = this.buf.flatten(buf, position, off, len); total += read; if (read != len) { int readAmt = len - read; delegate.hadoop().readData(delegate, position + read, readAmt, buf, off + read, readAmt).get(); total += readAmt; } if (clientLog.isLogEnabled()) clientLog.logRandomRead(logStreamId, position, len); } catch (IgniteCheckedException e) { throw HadoopIgfsUtils.cast(e); } finally { readEnd(); } }
From source file:org.gridgain.grid.kernal.ggfs.hadoop.GridGgfsHadoopInputStream.java
/** {@inheritDoc} */ @Override/*from w w w .j av a 2 s .c o m*/ public synchronized void readFully(long position, byte[] buf, int off, int len) throws IOException { long remaining = limit - position; checkClosed(); if (len > remaining) throw new EOFException("End of stream reached before data was fully read."); readStart(); try { int read = this.buf.flatten(buf, position, off, len); total += read; if (read != len) { int readAmt = len - read; delegate.hadoop().readData(delegate, position + read, readAmt, buf, off + read, readAmt).get(); total += readAmt; } if (clientLog.isLogEnabled()) clientLog.logRandomRead(logStreamId, position, len); } catch (GridException e) { throw GridGgfsHadoopUtils.cast(e); } finally { readEnd(); } }
From source file:dk.statsbiblioteket.util.LineReader.java
/** * Sets the absolute position within the file. * * @param position the position in the given file. this must be equal to or * less than the file size. * @throws IOException if the position is not within the range of the file. *///from www . j av a 2s. c o m public void seek(long position) throws IOException { //log.trace("seek(" + position + ") called"); if (position > length()) { //noinspection DuplicateStringLiteralInspection throw new EOFException( "Cannot set position " + position + " as the file size is only " + length() + " bytes"); } if (position < 0) { throw new IllegalArgumentException("The position cannot be negative"); } if (bufferStart != -1) { if (position < bufferStart || position >= bufferStart + bufferSize) { invalidateBuffer(); } else { // The new position is inside the existing buffer try { buffer.position((int) (position - bufferStart)); } catch (IllegalArgumentException e) { throw new IllegalArgumentException( "Trying to set the buffer position to " + position + " - " + bufferStart + " = " + (position - bufferStart) + " with a buffer of size " + getBufferSize(), e); } } } this.position = position; }
From source file:com.maverick.http.HttpResponse.java
protected String readLine(InputStream in) throws IOException { StringBuffer lineBuf = new StringBuffer(); int c;/*w ww. ja va2s . c om*/ while (true) { c = in.read(); if (c == -1) { if (lineBuf.length() == 0) throw new EOFException(Messages.getString("HttpResponse.unexpectedEOF")); //$NON-NLS-1$ break; } if (c != '\n') { lineBuf.append((char) c); } else { break; } } return lineBuf.toString().trim(); }
From source file:org.apache.hadoop.hbase.index.IndexSpecification.java
/** * @param Data Input Stream//from ww w . j ava 2 s . c o m * @throws IOException */ public void readFields(DataInput in) throws IOException { this.name = Bytes.readByteArray(in); try { HTableDescriptor.isLegalTableName(this.name); } catch (IllegalArgumentException e) { String msg = "Received unexpected data while parsing the column qualifiers :" + Bytes.toString(this.name) + "."; Log.warn(msg + " Could be an non-indexed table."); throw new EOFException(msg); } int indexColsSize = in.readInt(); indexColumns.clear(); for (int i = 0; i < indexColsSize; i++) { ColumnQualifier cq = new ColumnQualifier(); // Need to revisit this place. May be some other valid value though invalid // comes up. try { cq.readFields(in); } catch (IllegalArgumentException e) { throw new EOFException("Received unexpected data while parsing the column qualifiers."); } internalAdd(cq); } this.maxVersions = in.readInt(); this.ttl = in.readLong(); }
From source file:com.microsoft.azure.storage.analytics.LogRecordStreamReader.java
/** * Read a field from the stream.//from w w w. j av a 2 s .c o m * * @param isQuotedString * whether the field is encased in quotes and escaped. * @return * the field read. * @throws IOException */ private String readField(boolean isQuotedString) throws IOException { if (!this.isFirstFieldInRecord) { this.readDelimiter(LogRecordStreamReader.FIELD_DELIMITER); } else { this.isFirstFieldInRecord = false; } // Read a field, handling field/record delimiters in quotes and not counting them, // and also check that there are no record delimiters since they are only expected // outside of a field. // Note: We only need to handle strings that are quoted once from the beginning, // (e.g. "mystring"). We do not need to handle nested quotes or anything because // we control the string format. StringBuilder fieldBuilder = new StringBuilder(); boolean hasSeenQuoteForQuotedString = false; boolean isExpectingDelimiterForNextCharacterForQuotedString = false; while (true) { // If EOF when we haven't read the delimiter; unexpected. if (this.isEndOfFile()) { throw new EOFException(SR.LOG_STREAM_END_ERROR); } // Since we just checked isEndOfFile above, we know this is a char. char c = (char) this.peek(); // If we hit a delimiter that is not quoted or we hit the delimiter for // a quoted string or we hit the empty value string and hit a delimiter, // then we have finished reading the field. // Note: The empty value string is the only string that we don't require // quotes for for a quoted string. if ((!isQuotedString || isExpectingDelimiterForNextCharacterForQuotedString || fieldBuilder.length() == 0) && (c == LogRecordStreamReader.FIELD_DELIMITER || c == LogRecordStreamReader.RECORD_DELIMITER)) { // The delimiter character was peeked but not read -- they'll be consumed // on either the next call to readField or to EndCurrentRecord. break; } if (isExpectingDelimiterForNextCharacterForQuotedString) { // We finished reading a quoted string but found no delimiter following it. throw new IllegalStateException(SR.LOG_STREAM_QUOTE_ERROR); } // The character was not a delimiter, so consume and add to builder. this.read(); fieldBuilder.append(c); // We need to handle quotes specially since quoted delimiters // do not count since they are considered to be part of the // quoted string and not actually a delimiter. // Note: We use a specific quote character since we control the format // and we only allow non-encoded quote characters at the beginning/end // of the string. if (c == LogRecordStreamReader.QUOTE_CHAR) { if (!isQuotedString) { // Non-encoded quote character only allowed for quoted strings. throw new IllegalStateException(SR.LOG_STREAM_QUOTE_ERROR); } else if (fieldBuilder.length() == 1) { // Opening quote for a quoted string. hasSeenQuoteForQuotedString = true; } else if (hasSeenQuoteForQuotedString) { // Closing quote for a quoted string. isExpectingDelimiterForNextCharacterForQuotedString = true; } else { // Unexpected non-encoded quote. throw new IllegalStateException(SR.LOG_STREAM_QUOTE_ERROR); } } } String field; // Note: For quoted strings we remove the quotes. // We do not do this for the empty value string since it represents empty // and we don't write that out in quotes even for quoted strings. if (isQuotedString && fieldBuilder.length() != 0) { field = fieldBuilder.substring(1, fieldBuilder.length() - 1); } else { field = fieldBuilder.toString(); } return field; }