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more efficient mem alloc & usage

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jrandom
2004-07-25 23:33:54 +00:00
committed by zzz
parent ce3e7e623c
commit abaa5d87f6
3 changed files with 15 additions and 16 deletions
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4
core/java/src/net/i2p/crypto/AESInputStream.java
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@@ -14,7 +14,7 @@ import java.io.ByteArrayOutputStream;
import java.io.FilterInputStream; import java.io.FilterInputStream;
import java.io.IOException; import java.io.IOException;
import java.io.InputStream; import java.io.InputStream;
import java.util.LinkedList; import java.util.ArrayList;
import java.util.List; import java.util.List;
import net.i2p.I2PAppContext; import net.i2p.I2PAppContext;
@@ -61,7 +61,7 @@ public class AESInputStream extends FilterInputStream {
_lastBlock = new byte[BLOCK_SIZE]; _lastBlock = new byte[BLOCK_SIZE];
System.arraycopy(iv, 0, _lastBlock, 0, BLOCK_SIZE); System.arraycopy(iv, 0, _lastBlock, 0, BLOCK_SIZE);
_encryptedBuf = new ByteArrayOutputStream(BLOCK_SIZE); _encryptedBuf = new ByteArrayOutputStream(BLOCK_SIZE);
_readyBuf = new LinkedList(); _readyBuf = new ArrayList(1024);
_cumulativePaddingStripped = 0; _cumulativePaddingStripped = 0;
_eofFound = false; _eofFound = false;
} }

12
core/java/src/net/i2p/stat/Rate.java
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@@ -349,8 +349,7 @@ public class Rate {
} }
} }
public void store(OutputStream out, String prefix) throws IOException { public void store(String prefix, StringBuffer buf) throws IOException {
StringBuffer buf = new StringBuffer(16*1048);
PersistenceHelper.add(buf, prefix, ".period", "Number of milliseconds in the period", _period); PersistenceHelper.add(buf, prefix, ".period", "Number of milliseconds in the period", _period);
PersistenceHelper.add(buf, prefix, ".creationDate", PersistenceHelper.add(buf, prefix, ".creationDate",
"When was this rate created? (milliseconds since the epoch, GMT)", _creationDate); "When was this rate created? (milliseconds since the epoch, GMT)", _creationDate);
@@ -388,7 +387,6 @@ public class Rate {
PersistenceHelper.add(buf, prefix, ".lifetimeTotalEventTime", PersistenceHelper.add(buf, prefix, ".lifetimeTotalEventTime",
"How many milliseconds have the events since this stat was created consumed?", "How many milliseconds have the events since this stat was created consumed?",
_lifetimeTotalEventTime); _lifetimeTotalEventTime);
out.write(buf.toString().getBytes());
} }
/** /**
@@ -476,11 +474,11 @@ public class Rate {
rate.addData(i * 100, 20); rate.addData(i * 100, 20);
} }
rate.coallesce(); rate.coallesce();
java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream(2048); StringBuffer buf = new StringBuffer(1024);
try { try {
rate.store(baos, "rate.test"); rate.store("rate.test", buf);
byte data[] = baos.toByteArray(); byte data[] = buf.toString().getBytes();
_log.error("Stored rate: size = " + data.length + "\n" + new String(data)); _log.error("Stored rate: size = " + data.length + "\n" + buf.toString());
Properties props = new Properties(); Properties props = new Properties();
props.load(new java.io.ByteArrayInputStream(data)); props.load(new java.io.ByteArrayInputStream(data));

15
core/java/src/net/i2p/stat/RateStat.java
View File

@@ -110,16 +110,17 @@ public class RateStat {
buf.append("# ").append(_description).append(NL); buf.append("# ").append(_description).append(NL);
buf.append("# ").append(NL).append(NL); buf.append("# ").append(NL).append(NL);
out.write(buf.toString().getBytes()); out.write(buf.toString().getBytes());
buf = null; buf.setLength(0);
for (int i = 0; i < _rates.length; i++) { for (int i = 0; i < _rates.length; i++) {
StringBuffer rbuf = new StringBuffer(1024); buf.append("#######").append(NL);
rbuf.append("#######").append(NL); buf.append("# Period : ").append(DataHelper.formatDuration(_rates[i].getPeriod())).append(" for rate ")
rbuf.append("# Period : ").append(DataHelper.formatDuration(_rates[i].getPeriod())).append(" for rate ")
.append(_groupName).append(" - ").append(_statName).append(NL); .append(_groupName).append(" - ").append(_statName).append(NL);
rbuf.append(NL); buf.append(NL);
out.write(rbuf.toString().getBytes()); out.write(buf.toString().getBytes());
String curPrefix = prefix + "." + DataHelper.formatDuration(_rates[i].getPeriod()); String curPrefix = prefix + "." + DataHelper.formatDuration(_rates[i].getPeriod());
_rates[i].store(out, curPrefix); _rates[i].store(curPrefix, buf);
out.write(buf.toString().getBytes());
buf.setLength(0);
} }
} }