Example usage for javax.activation DataSource equals

Introduction

In this page you can find the example usage for javax.activation DataSource equals.

Prototype

public boolean equals(Object obj) 

Source Link

Document

Indicates whether some other object is "equal to" this one.

Usage

From source file:immf.MyHtmlEmail.java

/**
 * Embeds the specified <code>DataSource</code> in the HTML using a
 * randomly generated Content-ID. Returns the generated Content-ID string.
 *
 * @param dataSource the <code>DataSource</code> to embed
 * @param name the name that will be set in the filename header field
 * @return the generated Content-ID for this <code>DataSource</code>
 * @throws EmailException if the embedding fails or if <code>name</code> is
 * null or empty/*w w  w.ja  v a2  s .  c  o  m*/
 * @see #embed(DataSource, String, String)
 * @since 1.1
 */
public String embed(DataSource dataSource, String name) throws EmailException {
    // check if the DataSource has already been attached;
    // if so, return the cached CID value.
    if (inlineEmbeds.containsKey(name)) {
        InlineImage ii = (InlineImage) inlineEmbeds.get(name);
        // make sure the supplied URL points to the same thing
        // as the one already associated with this name.
        if (dataSource.equals(ii.getDataSource())) {
            return ii.getCid();
        } else {
            throw new EmailException("embedded DataSource '" + name + "' is already bound to name "
                    + ii.getDataSource().toString() + "; existing names cannot be rebound");
        }
    }

    String cid = randomAlphabetic(HtmlEmail.CID_LENGTH).toLowerCase();
    return embed(dataSource, name, cid);
}

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