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package com.sun.jersey.core.header;
import java.text.ParseException;
import java.util.Collections;
import java.util.Date;
import java.util.Map;
import com.sun.jersey.core.header.reader.HttpHeaderReader;
/**
* A content disposition header.
*
* @author [email protected]
* @author [email protected]
*/
public class ContentDisposition {
private String type;
private Map parameters;
private String fileName;
private Date creationDate;
private Date modificationDate;
private Date readDate;
private long size;
protected ContentDisposition(String type, String fileName,
Date creationDate, Date modificationDate, Date readDate,
long size) {
this.type = type;
this.fileName = fileName;
this.creationDate = creationDate;
this.modificationDate = modificationDate;
this.readDate = readDate;
this.size = size;
}
public ContentDisposition(String header) throws ParseException {
this(header, false);
}
public ContentDisposition(String header, boolean fileNameFix) throws ParseException {
this(HttpHeaderReader.newInstance(header), fileNameFix);
}
public ContentDisposition(HttpHeaderReader reader) throws ParseException {
this(reader, false);
}
public ContentDisposition(HttpHeaderReader reader, boolean fileNameFix) throws ParseException {
reader.hasNext();
type = reader.nextToken();
if (reader.hasNext()) {
parameters = HttpHeaderReader.readParameters(reader, fileNameFix);
}
parameters = parameters == null ? Collections.emptyMap()
: Collections.unmodifiableMap(parameters);
createParameters();
}
/**
* Get the type.
*
* @return the type
*/
public String getType() {
return type;
}
/**
* Get the parameters.
*
* @return the parameters
*/
public Map getParameters() {
return parameters;
}
/**
* Get the filename parameter.
*
* @return the size
*/
public String getFileName() {
return fileName;
}
/**
* Get the creation-date parameter.
*
* @return the creationDate
*/
public Date getCreationDate() {
return creationDate;
}
/**
* Get the modification-date parameter.
*
* @return the modificationDate
*/
public Date getModificationDate() {
return modificationDate;
}
/**
* Get the read-date parameter.
*
* @return the readDate
*/
public Date getReadDate() {
return readDate;
}
/**
* Get the size parameter.
*
* @return the size
*/
public long getSize() {
return size;
}
/**
* Convert the disposition to a "Content-Disposition" header value.
*
* @return the "Content-Disposition" value.
*/
@Override
public String toString() {
return toStringBuffer().toString();
}
protected StringBuilder toStringBuffer() {
StringBuilder sb = new StringBuilder();
sb.append(type);
addStringParameter(sb, "filename", fileName);
addDateParameter(sb, "creation-date", creationDate);
addDateParameter(sb, "modification-date", modificationDate);
addDateParameter(sb, "read-date", readDate);
addLongParameter(sb, "size", size);
return sb;
}
protected void addStringParameter(StringBuilder sb, String name, String p) {
if (p != null)
sb.append("; ").append(name).append("=\"").append(p).append("\"");
}
protected void addDateParameter(StringBuilder sb, String name, Date p) {
if (p != null)
sb.append("; ").append(name).append("=\"").append(HttpDateFormat.getPreferedDateFormat().format(p)).append("\"");
}
protected void addLongParameter(StringBuilder sb, String name, Long p) {
if (p != -1)
sb.append("; ").append(name).append('=').append(Long.toString(p));
}
private void createParameters() throws ParseException {
fileName = parameters.get("filename");
creationDate = createDate("creation-date");
modificationDate = createDate("modification-date");
readDate = createDate("read-date");
size = createLong("size");
}
private Date createDate(String name) throws ParseException {
String value = parameters.get(name);
if (value == null)
return null;
return HttpDateFormat.getPreferedDateFormat().parse(value);
}
private long createLong(String name) throws ParseException {
String value = parameters.get(name);
if (value == null)
return -1;
try {
return Long.valueOf(value);
} catch (NumberFormatException e) {
throw new ParseException("Error parsing size parameter of value, " + value, 0);
}
}
/**
* Start building content disposition.
*
* @param type the disposition typr.
* @return the content disposition builder.
*/
public static ContentDispositionBuilder type(String type) {
return new ContentDispositionBuilder(type);
}
/**
* Builder to build content disposition.
*
* @param the builder type.
* @param the content disposition type.
*/
public static class ContentDispositionBuilder {
protected String type;
protected String fileName;
protected Date creationDate;
protected Date modificationDate;
protected Date readDate;
protected long size = -1;
ContentDispositionBuilder(String type) {
this.type = type;
}
/**
* Add the "file-name" parameter.
*
* @param fileName the "file-name" parameter. If null the value
* is removed
* @return this builder.
*/
public T fileName(String fileName) {
this.fileName = fileName;
return (T)this;
}
/**
* Add the "creation-date" parameter.
*
* @param creationDate the "creation-date" parameter. If null the value
* is removed
* @return this builder.
*/
public T creationDate(Date creationDate) {
this.creationDate = creationDate;
return (T)this;
}
/**
* Add the "modification-date" parameter.
*
* @param modificationDate the "modification-date" parameter. If null the value
* is removed
* @return this builder.
*/
public T modificationDate(Date modificationDate) {
this.modificationDate = modificationDate;
return (T)this;
}
/**
* Add the "read-date" parameter.
*
* @param readDate the "read-date" parameter. If null the value
* is removed
* @return this builder.
*/
public T readDate(Date readDate) {
this.readDate = readDate;
return (T)this;
}
/**
* Add the "size" parameter.
*
* @param size the "size" parameter. If -1 the value is removed.
* @return this builder.
*/
public T size(long size) {
this.size = size;
return (T)this;
}
/**
* Build the content disposition.
*
* @return the content disposition.
*/
public V build() {
ContentDisposition cd = new ContentDisposition(type, fileName, creationDate, modificationDate, readDate, size);
return (V)cd;
}
}
}