org.apache.james.jmap.utils.DownloadPath Maven / Gradle / Ivy
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package org.apache.james.jmap.utils;
import java.util.List;
import java.util.Optional;
import com.google.common.base.Preconditions;
import com.google.common.base.Splitter;
import com.google.common.base.Strings;
import com.google.common.collect.Iterables;
public class DownloadPath {
public static DownloadPath from(String path) {
Preconditions.checkArgument(!Strings.isNullOrEmpty(path), "'path' is mandatory");
// path = /blobId/name
// idx = 0 1 2
List pathVariables = Splitter.on('/').splitToList(path);
Preconditions.checkArgument(pathVariables.size() >= 1 && pathVariables.size() <= 3, "'blobId' is mandatory");
String blobId = Iterables.get(pathVariables, 1, null);
Preconditions.checkArgument(!Strings.isNullOrEmpty(blobId), "'blobId' is mandatory");
return new DownloadPath(blobId, name(pathVariables));
}
private static Optional name(List pathVariables) {
return Optional.ofNullable(Strings.emptyToNull(Iterables.get(pathVariables, 2, null)));
}
private final String blobId;
private final Optional name;
private DownloadPath(String blobId, Optional name) {
this.blobId = blobId;
this.name = name;
}
public String getBlobId() {
return blobId;
}
public Optional getName() {
return name;
}
}