metadata.put(key, new String[] { value });
    }

    public String[] getValues(final String key) {
        return metadata.get(key);
    }

    public Set<String> getKeySet() {
        return metadata.keySet();
    }

    public String getContent() {
        return content;
    }

    public void setContent(final String content) {
        this.content = content;
    }