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use custom InputStream traversal instead of a full byte array (SPR-9118)

This commit is contained in:
Juergen Hoeller 2012-02-14 21:16:10 +01:00
parent fe57f74c1a
commit 2fa87a71fa
1 changed files with 16 additions and 2 deletions
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18
org.springframework.core/src/main/java/org/springframework/core/io/AbstractResource.java
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@ -25,7 +25,6 @@ import java.net.URISyntaxException;
import java.net.URL; import java.net.URL;
import org.springframework.core.NestedIOException; import org.springframework.core.NestedIOException;
import org.springframework.util.FileCopyUtils;
import org.springframework.util.ResourceUtils; import org.springframework.util.ResourceUtils;
/** /**
@ -115,7 +114,22 @@ public abstract class AbstractResource implements Resource {
* @see #getInputStream() * @see #getInputStream()
*/ */
public long contentLength() throws IOException { public long contentLength() throws IOException {
return FileCopyUtils.copyToByteArray(getInputStream()).length; InputStream is = getInputStream();
try {
long size = 0;
byte[] buf = new byte[255];
for (int read = is.read(buf); read != -1;) {
size += read;
}
return size;
}
finally {
try {
is.close();
}
catch (IOException ex) {
}
}
} }
/** /**