what-the-bank/sources/com/google/common/io/MultiReader.java

77 lines
2.0 KiB
Java

package com.google.common.io;
import com.google.common.base.Preconditions;
import java.io.IOException;
import java.io.Reader;
import java.util.Iterator;
/* loaded from: classes2.dex */
class MultiReader extends Reader {
private Reader current;
private final Iterator<? extends CharSource> it;
/* JADX INFO: Access modifiers changed from: package-private */
public MultiReader(Iterator<? extends CharSource> it) throws IOException {
this.it = it;
advance();
}
private void advance() throws IOException {
close();
if (this.it.hasNext()) {
this.current = this.it.next().openStream();
}
}
@Override // java.io.Reader
public int read(char[] cArr, int i, int i2) throws IOException {
Reader reader = this.current;
if (reader == null) {
return -1;
}
int read = reader.read(cArr, i, i2);
if (read != -1) {
return read;
}
advance();
return read(cArr, i, i2);
}
@Override // java.io.Reader
public long skip(long j) throws IOException {
Preconditions.checkArgument(j >= 0, "n is negative");
if (j > 0) {
while (true) {
Reader reader = this.current;
if (reader == null) {
break;
}
long skip = reader.skip(j);
if (skip > 0) {
return skip;
}
advance();
}
}
return 0L;
}
@Override // java.io.Reader
public boolean ready() throws IOException {
Reader reader = this.current;
return reader != null && reader.ready();
}
@Override // java.io.Reader, java.io.Closeable, java.lang.AutoCloseable
public void close() throws IOException {
Reader reader = this.current;
if (reader != null) {
try {
reader.close();
} finally {
this.current = null;
}
}
}
}